A Fang (a pseudonym) after 90 often feels tired. Last year, on the recommendation of a friend, an online consulting agency of nutrition collocation in personal tailor prepared some health products for him. "It’s a WeChat applet. It took a few minutes to do the questionnaire. According to the results, the platform gave me some health care products, including seaweed oil, vitamin E and other 5-minute pills." Five small pills a day, A Fang feels that the price is not expensive, and the first order can’t reach 700 yuan. Three months’ worth, and I haven’t finished eating for half a year. Although he didn’t see the effect of these nutritional supplements, he was psychologically satisfied.

　　A Fang’s friend left a message for the qianjiang evening news Hour reporter, trying to confirm whether this little pill is reliable or not. "Is this an IQ tax?"

　　Nutritionist’s statement:

　　The conclusion of the questionnaire is unscientific.

　　This online consulting organization of nutrition collocation in personal tailor takes WeChat as the main channel, carries out brand promotion through WeChat official account, and advertises in the circle of friends based on big data, and then uses the strong sociality of WeChat to push the brand to a wider audience. At the same time, it also opened up channels such as Tik Tok, Xiaohongshu and Tmall to capture the youth market.

　　The founder of the agency mentioned in an interview with other media that "some people can’t keep eating vegetables and exercising every day. He must smoke, drink and eat fast food in his life, then we can recommend him to take some extra vitamins with the goal of making people healthier. "

　　The reporter also spent a few minutes making a questionnaire, including topics such as eating habits and lifestyle. The questions are many and detailed, and some are indeed subjective.

　　Finally, the platform for reporter personal tailor’s plan requires five kinds of drugs, with a quantity of three months and a cost of more than 600 yuan.

　　Is the vitamin supplement obtained by this consultation reliable?

　　After reading the complete questionnaire, Lu Yanxuan, a nutritionist at the Second Hospital of Zhejiang University, said: "The questions involved in the questionnaire are quite reasonable, and there is no problem from the evaluation point of view, but the conclusions drawn through these questions are not enough evidence."

　　In other words, these surveys can’t determine what your body needs, and the conclusions drawn from them are too one-sided. For example, fatigue means that the body lacks some nutrients, which is unscientific.

　　In her view, as long as you follow the Dietary Guidelines for China Residents (2022) issued by the China Nutrition Society on April 26th, 2022, you can achieve a balanced nutrition.

　　"Many health care products, including nutritional supplements, are controversial. Whether they can prevent and alleviate diseases, there is no direct and specific conclusion." Lu Yanxi said.

　　In fact, in the usual diet, nutrients are enough. For example, vitamin e exists in our usual cooking oil; Vitamin A can be taken from meat, eggs, milk and dark vegetables.

　　Just eat reasonably at ordinary times.

　　Special people should supplement nutrients.

　　Lu Yan-fung’s conclusion is that a reasonable diet can satisfy nutrition and maintain good health, and no additional supplements are recommended.

　　For example, too much calcium intake will interfere with the absorption of zinc and iron; Vitamins A and D are fat-soluble vitamins. If they are not easily metabolized, they may accumulate in the body and even have the risk of poisoning.

　　"The dosage standard in China is different from that in foreign countries, so foreign health care products may not be suitable for Chinese." She said that even the most harmless probiotics that can regulate the intestines, everyone has different reactions to it, so you can’t blindly follow suit.

　　But some special people really need to supplement nutrients, so they can eat some properly.

　　Pregnant women, nursing mothers, young children, the elderly, etc., due to the high demand for some nutrients in special physiological periods, should often consult nutritionists, nutrition experts or doctors (hospitals, health centers) to make reasonable nutritional conditioning to ensure the nutritional needs in special physiological periods.

　　The means of nutritional conditioning include diet, nutrient supplement, reasonable exercise and other measures.

　　On the whole, Lu Yan-fung suggested that you should not eat health care products to supplement nutrients at will, and a reasonable diet can fully meet the nutrition. If you really want to supplement it, you need to supplement it scientifically and effectively under the guidance of professional doctors.

　　Changchun, China, March 11 (Reporter Guo Dongyu) How important is a good seed for food production?

　　"Good seeds, good rain and good moisture can make us look forward to a bumper harvest year." Han Fengxiang of Fenghuangshan Agricultural Machinery Farmers’ Professional Cooperative in Lishu County, Siping City, Jilin Province said.

　　"The contribution rate of excellent varieties to grain production has reached more than 45%, which plays a vital role in national food security." Zhang Zhijun, a researcher at the Corn Research Institute of Jilin Academy of Agricultural Sciences, said.

　　"I have a dream, buried in the soil, convinced that it is different. Light gives it hope, rain nourishes it and grows with the seeds. " Yuan Longping, the father of hybrid rice, said.

　　A small seed, one tied to the people’s rice bowl and the other tied to the national strategy (photo by Yang Guangwang)

　　This year, the No.1 Document of the Central Committee proposed that the seed industry should be revitalized in depth, the pace of industrialization of corn and soybean biological breeding should be accelerated, the pilot scope should be expanded in an orderly manner, and planting management should be standardized.

　　Recently, the reporter walked into Gongzhuling City, the founding unit of the National Modern Seed Industry Park and a national-level rice seed production county, to see how Jilin people on the black land grasped the "core" of grain.

　　Organic fertilizer "waits" for the next field (photo by Yang Guangwang)

　　In the more than 20,000 mu seed field of Hongxiang Seed Industry Co., Ltd. (hereinafter referred to as "Hongxiang Seed Industry") in Gongzhuling City, the land has been turned over and the organic fertilizer has been piled up at the edge of the field. "This seed production base was transferred last year. We used the method of black land protection to produce seeds. After a year of practice, the seed quality is very good." He Wei, general manager of Hongxiang Seed Industry, said.

　　Walking into the seed cultivation room, a fresh new green brings ying ying spring. "This is our trial variety and we are testing the emergence rate." He Wei said, "The seedlings in this germination box grew the day before yesterday, and each leaf of them contains a lot of information, which is very important for us breeders." Here, enterprises invest about 50 million yuan in maize breeding every year. "We carefully selected the seeds and planted them in the experimental field. Through the growth and yield, we found those plants with less diseases, lodging resistance and high yield."

　　A piece of new green "nurtures" the hope of a bumper harvest (photo by Yang Guangwang)

　　In addition to constantly researching and developing new varieties, how to make seeds more suitable for modern agricultural production methods is a problem that the Corn Research Institute of Jilin Academy of Agricultural Sciences is currently thinking about.

　　"At present, one of the main problems in corn production is that the level of mechanized harvesting of seeds is low. At present, the harvesting method is mechanical harvesting of ears or manual harvesting, which is not conducive to large-scale production." Zhang Zhijun, a researcher at the Corn Research Institute of Jilin Academy of Agricultural Sciences, said.

　　In recent years, the corn research institute of Jilin Academy of Agricultural Sciences has taken the research and development of new varieties suitable for modern production methods as its main research goal. "At present, we have cultivated Jidan 66, Jidan 436, and Jidan 81 and 82, which will be approved soon. It can be said that grain harvesting is a strong support for Jilin agriculture to take the lead in realizing agricultural modernization in the future." Lu Ming, deputy director of the Corn Research Institute of Jilin Academy of Agricultural Sciences, said.

　　Researchers overcome the difficulty of grain harvesting by machine (photo by Zhou Linhai from Yangguang. com)

　　Document No.1 of Jilin Provincial Party Committee issued this year made it clear that it is necessary to implement the project of improving corn yield per unit area. Screening and popularizing new maize varieties with density tolerance, high resistance and high yield.

　　"Every seed we develop must first ensure safety and good resistance. No matter what kind of environment, it can grow. The second is high yield, which allows farmers to increase their output after planting. " He Wei said. Hongxiang Seed Industry plans to reach the production capacity of all four design production lines as planned before 2025, meeting the production demand of 100,000 mu. "In the future, we can serve the whole park, let the seed industry in Jilin Province come back and build a spring corn processing base."

　　It is the wish of Jilin breeders to cultivate a good seed and plant a good field, and it is also the road they will always stick to.

　　Hongxiang seed industry farming field (photo by Yang Guangwang Fa Qu Liangliang)

　　As the Olympic Games in Rio de Janeiro, Brazil are coming, I would like to review the history and see which scientific and technological products that appeared in previous Olympic Games are still in use today.

　　2000Sydney 2008 Olympic Games

　　1.shark skin like swimsuit

　　For the first time in the Olympic Games, Australian star Thorpe won three gold medals in this swimsuit. Many swimmers try to enhance their competitiveness by using a "shark skin" one-piece swimsuit with a V-shaped back. Because according to the manufacturer of this swimsuit — — Speedo claims that it can increase the speed of swimmers by 3%.

　　2.Trait racing suit

　　Marion Jones in the United States and Cathy Freeman in Australia and other sprint stars use special running clothes developed by Nike. This kind of running suit is very sleek and has a hood, which can cover all parts of the sprinter except his face, hands and feet. This can keep the muscles warm and compress, and improve the sprinter’s performance.

　　3.Recycled products sports equipment

　　Steve Moneghetti, an Australian marathon runner, took part in the competition wearing shorts and vest made of recycled soft drink bottles. According to the manufacturer Nike, this material is cooler than other fabrics.

　　Olympic 100-meter champion Donovan Bailey put on special running shoes made by Adidas. It is said that this special running shoe has a hard metal plate, which can keep human toes as stiff as jaguar’s claws when running.

　　2004Athens Olympic Games in 2008

　　2008Beijing Olympic Games in 2008

　　The 2008 Beijing Olympic Games adopted a large number of world-leading new technologies, such as ground lifting stage, multimedia, ground LED system, command system, communication system and other dozens of high and new technologies, involving many fields.

　　1.Digital lamp

　　The Olympic rings rose slowly in the Bird’s Nest and flew into the vast night sky. China’s ancient painting and calligraphy scrolls slowly unfolded, showing the classical artistic conception of ink painting; On the ancient Silk Road, huge wooden boats braved the wind and waves — — These shocking visual effects are outlined by the gorgeous lights of the Bird’s Nest.

　　At the opening ceremony of the Olympic Games, more than 600 competition lights in the Bird’s Nest were all abandoned, and Zhang Yimou chose its own lighting. Science and technology have entered the digital age, and the lighting effect has also transitioned to digital lights. This new lighting effect makes the scale and imagination of the stage effect of the opening ceremony of the 2008 Olympic Games to the extreme. Digital lights are used in the 2008 Beijing Olympic Games: PG lights, that is, high-brightness projection lamp. By using the principle of optical projection and high-brightness light source, the contents on the negative are projected to the ground in full color, which can form a very visual impact picture effect at night. In the performance of the opening ceremony, the large scroll that runs through the center of the venue and the evolution animation from ancient times to modern times are successively displayed on the scroll, all of which are projected to the center of the venue by this PG lamp after pre-production. The simplicity of black-and-white contrast of China ink painting, the splendor of western oil painting and the strong color of Impressionism are all presented by this high-tech technology.

　　2.LED

　　LED (Light Emitting Diode) is a semiconductor solid light emitting device, which uses a solid semiconductor chip as a light emitting material. When direct voltage is added at both ends, carriers in the semiconductor recombine to cause photon emission and generate light. LED can directly emit red, yellow, blue, green, cyan, orange, purple and white light.

　　In the 2008 Olympic Games, LED was used to the maximum extent. The opening scroll is opened on a huge LED screen. The screen is 147 meters long and 22 meters wide. It is a huge platform with the highest scientific and technological content, with 44,000 LEDs on it. The light and shadow effects made by LED are closely combined with performances, which conjure up various patterns and introduce the audience into a fantastic world. After repeated tests, LED can completely stand the tests of stepping on by actors and flooding. Although the whole opening ceremony took a long time, the key technologies such as battery solved the energy problem of LED.

　　3.Aluminum alloy material

　　At the opening ceremony of the 2008 Olympic Games, a big hole was opened in the center of the stage, and a "earth" with a height of 6 stories and a diameter of about 20 meters slowly rose from it. Where is such a big "earth" hiding? It turns out that this "earth" is compressed underground first, that is to say, the spherical structure must be flexible. When placed on the ground, it is oval, and it will become spherical after being pulled up by the steel wire above.

　　After the ball is lifted by the lifting platform, the actor needs to perform on the vertical surface of the ball, so it needs strong stability after lifting to ensure the safety and effect of the performance. This all depends on high-tech aluminum alloy photosensitive materials, which makes the "earth" flexible.

　　4.multi-media

　　At the opening ceremony of the 2008 Olympic Games, "birds" and "whales" flew and swam freely over the huge scrolls. How did these come about? It turns out that slide projection technology was used in the opening ceremony before, but this time, all kinds of multimedia equipment were used. It can use computers to digitize media information such as words, graphics, images, animations, sounds and videos, and then integrate them into a certain interactive interface, so as to create a bowl-shaped screen of thousands of square meters at the top of the Bird’s Nest, showing a clear picture of the whale swimming freely and expressing the harmony between man and nature.

　　5.Digital ignition

　　Twenty-nine huge colorful footprints made up of fireworks opened the curtain of the 29th Beijing Olympic Games, symbolizing that the modern Olympic Games is coming towards Beijing step by step and entering the Bird’s Nest. The lighting of these 29 big footprints is controlled by computer system and digital lighting is adopted. This technology can ignite all fireworks in a short time, ensuring that fireworks can cross 3.5 kilometers in just a few seconds. In addition, there are 22 launching points in the dragon-shaped water system next to the Bird’s Nest. After digital control by computer, all fireworks bombs can shoot into the sky one after another, making the fireworks look like a flying dragon. Although traditional fireworks are still used, after digital ignition, fireworks show different visual effects from the past.

　　2012London 2008 Olympic Games

　　1.Photographic robot

　　Getty Images, the official photo agency of London Olympic Games, installed photographic robots in some Olympic venues, which can realize remote control and 360-degree rotation. According to the NBC report, "photographic equipment can be hidden in flashlights, rafters and scaffolding, and placed in and around the Olympic Games, which can play the most important role in places where photographers can’t reach because of distance and safety reasons."

　　2.A more attractive voice

　　It is reported in the Atlantic Monthly that most of the voices heard on TV during watching the Olympic Games are not true. Some sounds were not recorded at the game site, at least in this sense, it is not true. Some audio is recorded in advance under optimized conditions and then used for TV broadcast. The website of Atlantic Monthly also cited an example of the Olympic archery competition. An Olympic audio engineer said that the sound was based on the sound he heard in the movie Robin Hood. He used a special microphone to collect the sound on the ground between the archer and the arrow rake. It is said that this method produces a sound that no one can actually experience at the scene.

　　3.Double runway

　　The runway of the main stadium of London Olympic Games has adopted a brand-new surface, which means that track and field athletes do not need to wear spikes to participate in the competition. According to the BBC, "Other runways are designed with rubber particles on the top floor, which combines the traction and shock absorption. Different from the past, the runway designed by Mondo separates these functions into two layers. The bottom layer is padded, which can cushion and shock absorption, and the top layer is durable, which can maximize the skid resistance, adhesion friction and durability. " This design makes it unnecessary for athletes to wear spikes on the track.

　　4.artificial limb

　　South African athlete Oscar Pistorius, who has nicknames such as "Oscar Pistorius" and "the fastest legless man in the world", became the first athlete to use artificial limbs to participate in the Paralympic Games. After a controversy over whether artificial limbs should be allowed to participate in the Olympic Games, Pistorius used special carbon fiber artificial limbs to participate in the 400-meter and 4×400-meter relay races.

　　5. Athletes who put data first

　　London Olympic Games is a "digital Olympics". Many athletes use sleep tracking devices and motion capture systems to understand their physical condition more accurately. According to the Financial Times, some companies dealing in biometric instruments also deal with athletes to participate in data collection to improve the performance of gadgets.

　　6.Virtual bicycle

　　Although it is thousands of miles away from London, Australian cyclists have been training in London cycling track by using virtual reality technology. In a video of the Australian Broadcasting Corporation explaining the technology, it can be seen that cyclists are looking at a screen that looks like a video game, which is actually an environment that is completely simulated according to the London Olympic Road Cycling Stadium. Each training bicycle is fixed in the Australia Institute of Sport, but it is equipped with a screen, a GPS and some ranging tools. This system can also collect the training data of athletes, and the coach can clearly know their time-consuming, speed, energy and riding distance.

　　7.start detection system

　　Omega, the official timer of the Olympic Games, brought a new starting equipment to swimming and track and field events in London Olympic Games. The track starter is fully electronic for the first time. It is said that the technology in the 1970s required athletes to push the starting device 5 mm to start. Now, swimmers start to light up directly to show who is in the first place, who is in the second place and who is in the third place.

　　8.Kick sensor

　　Originally, the Olympic Games may cancel the Taekwondo competition, but technically recording the strength and accuracy of kicking may save the event. Zhao Zhengyuan, president of the World Taekwondo Federation, said in an interview: "I think Taekwondo will really benefit from technology, because it can ensure that medals will be awarded to the best athletes and will not be awarded to others because of misjudgment by the referee. This is an excellent opportunity for us to stay in the Olympic Games. There are few competitions with this technology, which will help to eliminate human errors in taekwondo competitions. "

　　9.Digital housekeeper

　　Being selected for the Olympic Games is not only a proof of strength for an athlete, but also a supreme honor. Can the organizers of the Olympic Games use the power of science and technology to help athletes concentrate on the competition and eliminate their worries in life? Atos, the digital partner of the London Olympic Games, did just that. Atos Company established an identity information system for nearly 15,000 athletes who participated in the Olympic Games and Paralympic Games. The athletes who were included in the system were equivalent to obtaining a certification label, which made it easier to obtain visas and a series of preferential policies. Atos Company has also compiled a supporting application, so that athletes can log in to their identity accounts through their mobile phones, tablets or computers on weekdays. The account will contain a lot of information including the competition schedule, training plan and competition results, which is equivalent to providing a "digital housekeeper" for each participant.

　　10.Reduce the burden on runners

　　As a space power, the United States has also applied its own space technology to the preparations for the Olympic Games. Shannon Rowbury, a well-known American long-distance runner, unfortunately suffered from an injury and her femur was damaged. However, with the help of space science and technology, she only rested for six weeks after diagnosis and resumed training. Robery uses a set of AlterG anti-gravity running assistant device, which allows the trainer to train with at least 20% of his own weight, and the physical burden of the athlete will be greatly reduced. The principle of this treadmill is to pump air into the air bag around the runner’s waist. When the air pressure in the air bag rises, the runner will be lifted and the weight load will be reduced. Athletes can reduce their weight by up to 80% simply by pressing the up/down buttons in the panel.

　　11.Team overall data analysis

　　For cyclists, the wind tunnel laboratory is their loyal scientific and technological partner. The data analysis in the wind tunnel laboratory can help athletes optimize training programs, adjust training methods, and improve their performance by using aerodynamic scientific and technological achievements. But for a long time, the analysis of wind tunnel laboratory can only serve an athlete on a personal basis. Researchers at Monash University in Australia have improved an experimental device used to test airplanes and cars, enabling it to collect data of athletes for analysis. More crucially, this machine has crossed the barrier of analyzing individuals before, and can analyze the data of the whole bicycle fleet at the same time. In this way, the coach can make a training plan for the whole team according to the analysis results and find ways to improve the team’s performance.

　　12.Red BullXplan

　　Although an athlete participates in the Olympic Games alone, he represents more than just him. Behind the athletes, there is a team of coaches who support his motherland and train for him. Lolo Jones, an American hurdler, participated in the Red Bull Project X. She once said in a video: "I’m not fighting alone". The video shows the whole team behind Jones: a coach, a director, a manager, a sports scientist, a coaching consultant and a physiology consultant. Such a rich and powerful work team is naturally not busy in vain, they use the most cutting-edge technology.

　　The Red Bull X project uses a 3D digital analysis system, which can do many things that humans can’t. Plan X is divided into three parts — — Vicon 3D tracking system, optical measurement system Optojump Next and data acquisition tool Phantom Flex Camera. The three technologies complement each other, which can not only give a macro evaluation of athletes’ performance, but also disassemble every minute of training competition into countless tiny fragments for analysis.

　　Jones’s team made 39 reflection marks on her body. With these marks, 40 Vicon T40S motion capture cameras capable of shooting 2000 frames per second will track all her movements. Optojump Next, an optical measurement system, will decompose every jump of Jones into contact time, flight time, height, hurdle rhythm, specific energy, specific power, total energy and total power. Finally, Phantom Flex Camera, a top camera capable of shooting 10,750 frames per second, will record Jones’ every minute with images.

　　"If technology can help an athlete perform better, then this system can benefit everyone." Jones’s average hurdle time is 12.5 seconds, which she believes is largely due to the help of the team and technology behind her.

　　13.Real time feedback device

　　Good results in the competition will be cheered by the audience and graded by the referee. However, in training, how do athletes know their performance? Jonathan Green, composer, sound engineer and Gregory Sporton, dancer of the Visualization Research Unit at the Birmingham Institute of Art and Design in Birmingham, England, developed a feedback system called Motivepro. The original intention of this system is to provide real-time action feedback for dancers. Dancers are required to wear a series of sensors, and their movement information will be collected by Motivepro. Once the wearer’s physical activity exceeds the preset range, the vibrator in the device will vibrate to remind him.

　　Mimi Cesar, a rhythmic gymnast, found that this system can also be applied to rhythmic gymnastics similar to dance. For rhythmic gymnastics, the synchronization of the team is particularly critical. Motivepro system can give a reminder when an athlete’s movements are out of step, and can also collect sports information for the coach to analyze. With this system to help train, will the cooperation of the whole team be more tacit?

　　14.Brand-new pool take-off platform

　　The 2012 London Olympic Games used a brand-new upgraded swimming pool jumping platform in swimming competition. The platform was designed and manufactured by Omega. Compared with the previous take-off platform, the progress is that it has an adjustable inclined pedal certified by patent, which makes the athlete’s hind legs bend into a 90-degree angle when taking off in a squatting manner, which is considered to be the most suitable take-off posture. The new take-off platform is also equipped with a brand-new sensing system. This sensing system can ensure that athletes can hear the whistle at the beginning of the game at the same time, which can effectively avoid unnecessary mistakes of athletes. At the same time, the newly upgraded swimming pool take-off platform in Shanghai is equipped with a signal light system called "Swimming Ranking Indicator". At the end of the competition, the swimming lanes that won the first, second and third place will be marked on the take-off platform by different light spots, so that the audience can see at a glance.

　　15.Advanced drug testing equipment

　　GlaxoSmithKline is at King’ s College next to the Olympic Park. S College) has set up The Science Centre to serve the Olympic drug testing. During the Olympic Games, the center worked 24 hours a day, monitoring more than 6,000 urine samples and blood samples every day. After each competition, all the medal winners and the remaining half of the randomly selected contestants enter the center for illegal drug testing. The tested samples are divided into two parts, A and B, and A is stored for eight years for future more advanced scientific and technological testing; B was sent to the drug testing center. The drug testing center can check 70 illegal drug ingredients in one test, and each sample will be tested here for a total of 240 illegal drug ingredients. It can be seen that the fair conduct of the Olympic Games has a strong technical guarantee.

　　16.Electronic medical records

　　General Electric (GE) Medical Company provided an electronic medical record solution for the 2012 London Olympic Games, which made it possible for doctors and athletes to make medical records accessible through the Internet. The electronic medical records covering more than 700 participants were made in 90 days after the countdown to the London Olympic Games. At the same time, GE Medical Company also installed medical diagnostic equipment in the Olympic Park as a supporting facility for the whole set of electronic medical records.

　　17.Top medical logistics

　　During the Olympic Games, more than 16,000 Olympic athletes and more than 6,000 Paralympic athletes living in the Olympic Village will be fortunate to receive top-level medical logistics support. The latest version of super-large magnetic resonance imaging instrument, ultra-high-definition CT instrument, wireless digital X-ray detection system, upgraded ultrasonic detector and ECG detection equipment specially designed for the Olympic Games provided by GE Medical Company have all opened the eyes of medical volunteers for the Olympic Games. These equipments will not be removed after the Olympic Games, and they will continue to serve in this land that bears cheers and sweat.

　　2014Winter Olympics in Sochi in

　　Snow making: snow cannon

　　Snow making machine is a brand-new snow making system, which forms ice on an evaporator at -15℃ and sends it to ski slopes through cooled air. Due to the climate, Beijing and Zhangjiakou host the Winter Olympics, and a large number of snow making equipment will be used. Funa machine is not affected by climate, so long as it can keep a certain amount of water, it can make snow.

　　At the Sochi Olympic Games, the venue was really unfortunate — — Sochi is one of the warmest regions in Russia. In order to ensure that there is enough powdery snow to support the competition, Russian organizers use snow cannons to shoot a large number of artificial snowflakes. According to the news released by The New York Times, about 230 million gallons of water were used to make snow in this competition, and the snowfall covered an area of about 1,000 football fields.

CCTV News:Regarding the economic data released by China in the first quarter, multinational experts said that the economic data of China in the first quarter was better than market expectations, which indicated that China’s economy was making great strides, and China’s economic prosperity and development not only benefited China, but also benefited the whole world.

Surab Gupta, a senior researcher at the Center for Sino-American Studies in the United States, said that China’s GDP in the first quarter increased by 4.5% year-on-year and 2.2% quarter-on-quarter, which is a good sign that China’s economy is making great strides, and China will have a bumper harvest year in 2023.

Surab Gupta, Senior Researcher, Center for Sino-American Studies, USA:What we are seeing now is that China is striding forward, and the economic development speed is faster than the market expectation. Frankly speaking, I think China’s economy will soon reach the speed of take-off. In terms of economic growth, 2023 will usher in a bumper year.

Vitol Gaspar, director of the Financial Affairs Department of the International Monetary Fund, said that China’s economy has maintained growth not only because it can adapt to the needs of development and carry out transformation, but also because it insists on the effective combination of expanding consumption and deepening supply-side structural reform.

Vitol Gaspar, Director of the Financial Affairs Department of the International Monetary Fund:I think that China has a very strong growth record in the past 45 years, and China has proved that rapid growth and development are extremely important, and it has indeed lifted hundreds of millions of people out of poverty. With the continuous expansion of China’s scale in the world economy, it is very important for China to give priority to the growth of domestic resources, which shows Chinese’s intelligence.

David Falstein, president of the George Bush Foundation for US-China Relations, said that China’s economy started well in 2023, which benefited from the reform and opening-up policy, and China’s economic achievements were also conducive to global economic development.

David Falstein, President of George Bush Foundation for US-China Relations:Under the reform and opening-up policy, China has obviously achieved success. From the economic point of view, China has been on the right path for a long time, and China has been creating prosperity, improving living environment and improving material conditions. I think it is in the interest of China and the global economy to continue on this path.

In the new energy vehicle market, the brand of Wenjie has gradually won the recognition of consumers by virtue of its technology and performance, but its design has become a hot topic among netizens. In particular, the design of M7 and M9 has been pointed out by many commentators that it is too high similar to other brands, which affects the uniqueness of brands and consumers’ willingness to buy to some extent. However, with the news of M8, it seems that Huawei has listened to the voice of the market and taken action.

The design team of Wenjie M8 has undergone a major transformation, aiming at creating an SUV with a more attractive appearance. The latest renderings show that the appearance design of the M8 is significantly different from the previous model, showing a more sporty and fashionable atmosphere, while incorporating futuristic elements. The front of the car uses a penetrating LED daytime running light, with a split headlight design, and the vertical light group below enhances the recognition of the car.

The side of the car body is simple and powerful, and the dense spoke rims add a sense of luxury, while the smooth window lines further enhance the overall elegance. It is reported that the positioning of the boundary M8 will be between M7 and M9, and the body size is expected to be between the two accordingly.

In terms of price, the M8 is expected to be located in the price range of M7 and M9. Considering the price of 249,800-329,800 yuan and the price of 469,800-569,800 yuan, it is estimated that the starting price of M8 may be more than 300,000 yuan, and the top version may be close to 400,000 yuan. This pricing strategy can not only avoid direct competition with M7, but also won’t occupy the market space of M9.

Although the rendering provides us with a general idea of the appearance of the M8, there are also some details that are not completely consistent with the previously exposed road test spy photos, such as the design of the door handle. The rear part continues the style of M9, and the through taillight has a "Xi" pattern, which implies its programmable characteristics.

In terms of power system, the M8 is expected to be available in both pure electric and pure electric versions, and its performance parameters are expected to be similar to M9, including strong power output and all standard air suspension.

Referring to the M9, its car model is 496PS/675Nm, which broke 100 in 4.9 seconds, and the CLTC pure electric cruising range is 225Km and 275Km. The pure electric vehicle model is the book data of 530PS/673Nm, which broke 100 in 4.3 seconds. The CLTC pure electric cruising range is 630Km, and the whole system comes standard with air suspension.

↑ Ask the interior real shot of M8 exposed.

As for the interior, the M8 follows the design of M9, and is equipped with a "triple screen" consisting of a 12.3-inch LCD instrument panel, a 15.6-inch central control screen and a 16-inch passenger entertainment screen, and a high-order intelligent driving system, which reflects Huawei’s technical strength in intelligence.

Generally speaking, the biggest highlight of the M8 is its brand-new design, which will greatly enhance its recognition and attractiveness in the market. With the disclosure of more information, we look forward to asking M8 to achieve better sales results in the future market.

　　The key to building a socialist modern country in an all-round way and promoting the great rejuvenation of the Chinese nation lies in the party, the key lies in people, and in the final analysis, the generation after generation of loyal and reliable young cadres who can shoulder heavy responsibilities hold the "baton" in the new era. Recently, "Qiushi" magazine published an important article by the Supreme Leader General Secretary, "Strive to grow into a pillar talent who is loyal and reliable to the party and the people and worthy of the heavy responsibility of the times", focusing on major issues such as how young cadres grow into talents and who to start businesses for, and profoundly expounding from six aspects, and putting forward clear requirements for young cadres. As a Selected Graduates, I deeply feel the arduous responsibility and glorious mission, and I am also excited to have a broader grassroots world to display my talents, and I am more determined to grow into a new era Selected Graduates worthy of the heavy responsibility of national rejuvenation.

　　Build a solid foundation of belief that "politics is the first and loyalty is the most important".The party’s political construction is a fundamental, fundamental and overall issue concerning the direction, future and destiny of the party and the country. Talking about politics is the most basic and important standard and principle to measure a cadre. In the new era, Selected Graduates should take a clear-cut stand on politics, enhance its political position, strengthen its political responsibility, strive to improve its political judgment, political understanding and political execution, constantly temper its loyal and reliable political character to the party and the people, deeply understand the decisive significance of the "two establishment", constantly enhance its "four consciousnesses", strengthen its "four self-confidences", achieve its "two maintenance", and closely combine its personal ideal with Socialism with Chinese characteristics’s common ideal to achieve lofty ideals.

　　Practice the excellent skills of "solid theory and strong practice".Selected Graduates, from the campus to the society, from the organs to the grassroots, is unfamiliar with the actual situation of the village community and lacks experience in dealing with residents, so it is urgent to master the methods of mass work. It is necessary to strengthen theoretical study, strengthen theoretical foundation, and learn to observe, study and solve grassroots problems with the Party’s innovative theory. Consciously use the party’s innovative theory to guide practice and promote work, be good at summing up experience and grasping laws in grass-roots work and practice, and pay attention to strengthening tempering and increasing skills in peacetime work. Be willing to be a "primary school student", learn from the masses, strengthen investigation and research, and constantly improve comprehensive quality and work ability in dealing with various grassroots problems.

　　Always keep the enterprising attitude of "starting a business and bravely shouldering heavy burdens".As an outstanding representative of young people, Selected Graduates should take the initiative to do something, not despise trivial matters at the grass-roots level, not be afraid to avoid major events and difficulties related to development, be brave in "volunteering", dare to "ask for trouble" and get rid of "being superior to others"; We must be brave enough to take on heavy tasks, dare to wade through dangerous beaches, rapids and reefs, take the initiative to fight for the heaviest burden, gnaw at the hardest bones, and practice "hard and wide shoulders" in pioneering and forging ahead; We should do good deeds and make achievements, establish the value orientation of "reactive power is excessive, mediocrity is wrong", resolutely attack perfunctory and confused work, make everything closed-loop and effective, strive to grow into a "sharp soldier" who can do things, know how to do things and get things done, and contribute Selected Graduates’s strength to writing the grass-roots chapters of Chinese modernization. (Author: Xue Cheng)

    On November 15th, the national launch of the third generation power station of Easy Connect was held in Hangzhou, marking another solid and important step for Easy Connect in the field of automobile power exchange. The third-generation power station of Yiyi Interconnection has made greater breakthroughs in the aspects of "power exchange speed, power exchange reliability and power exchange safety guarantee", which also indicates that the operating market is welcoming the "power exchange outlet".

   The power exchange mode is a "potential stock", which will effectively complement the charging mode.

    As one of the important ways to replenish energy for new energy vehicles, the power exchange mode has always been an important direction to promote new energy infrastructure construction. In October, 2021, the Notice on Launching the Pilot Work of the New Energy Vehicle Switching Mode decided to launch the pilot work of the new energy vehicle switching mode application. There are 11 cities included in the pilot scope, including 8 comprehensive application cities (Beijing, Nanjing, Wuhan, Sanya, Chongqing, Changchun, Hefei and Jinan). In July 2023, "Several Measures on Promoting Automobile Consumption" proposed to speed up the popularization, application and construction of the power exchange mode.

    Although the current mainstream market for new energy vehicles is charging, according to market research and analysis of relevant experts, the mode of replacing electricity also has huge market potential and industrial expansion space.

    In the future, changing electricity will inevitably become one of the most important ways to replenish energy in the new energy vehicle market, and it is a "potential stock" for industrial upgrading, which will effectively complement the charging mode.

    "Easy Connect Technology Co., Ltd.", a subsidiary of Geely Automobile Group, is a firm practitioner and active promoter of automobile power exchange mode. In January 2017, the R&D team of power exchange technology was set up; In September 2020, the Chongqing Exhibition Station was completed, and the power exchange mode was released for the first time; In January 2021, he won the "Golden Intelligence Award of the Year" in the third China Automobile Golden Coconut Award; In September 2021, as a new power for power exchange, it appeared at the Beijing New Energy Automobile Industry Development Achievement Exhibition; In October, 2023, the brand vision was released: to build the first brand in the operation market.

   Create the industry’s first smart electricity exchange ecological platform and become a "strength school" for big travel.

    Easy Internet has been deeply involved in the power exchange industry for more than 6 years, and has accumulated leading industry experience. It has more than 1,000 R&D personnel and invested more than 1 billion yuan. It has thousands of technical patents in the power exchange fields such as "power exchange architecture, power exchange station, standardized battery pack, power exchange vehicle, and station control cloud platform", and has issued more than 30 related standards for power exchange, and its reliability verification test has exceeded 300,000 kilometers, making it the first in the industry to have "complete vehicle-battery".

    According to Yang Quankai, president of Yiyi Internet Technology Co., Ltd., Yiyi Internet’s third-generation power station has the advantages of "high modularity, high compatibility, high intelligence, high service capacity and high security", reshaping the new experience of replacing electricity and replenishing energy.

    (1) High modularity: The power station adopts a highly integrated modular design concept, which can increase or decrease the number of boxes according to the service capacity, realize rapid disassembly, strong reproducibility and rapid deployment, and can stop at the station within 24 hours at the earliest. The single station of the power exchange station covers an area of 120-200m2, with small floor space and high efficiency ratio.

    (2) High compatibility: the unique open power exchange platform architecture can achieve multi-vehicle compatibility and achieve wheelbase bandwidth coverage of 2700-3100mm. It has opened customized service for vehicles to the market, promoting the coordinated development of technology and the promotion of power exchange technical standards. The adaptive ambient temperature range of the power station is-30 ~ 55 C, which can adapt to the low temperature weather in most northern winters.

    (3) High intelligence: the intelligent temperature control system under all-weather conditions has the characteristics of constant temperature and slow charging, dynamic inspection, etc., which ensures the intelligent control of the whole charging environment, realizes the interconnection of vehicles, stations and cloud platforms, and realizes integrated operation.

    (4) High safety: The power exchange station has a three-level fire protection system, and 24-hour cloud monitoring is implemented for the power exchange battery by using 5G technology, and the battery life is prolonged by constant temperature and slow charging. Seven-layer safety measures are adopted to ensure the safety of the battery and the power exchange station, and advanced locking mechanism design has established a safety barrier in the whole process of power exchange.

    (5) High service capability: With the intelligent power exchange management system, the automatic power exchange operation can be unmanned, and the whole process takes less than 1.5 minutes (the mechanical power exchange part can be completed in 40 seconds at the earliest), and the number of power exchanges in a single station is ≥540 times a day, saving 1-2 hours for drivers in each shift. The annual power exchange capacity of a single station can reach 7 million kWh, and the annual revenue of a single station can reach 10 million yuan.

    In the next three years, Yiyi Interconnect will operate 2,000 power exchange stations nationwide, and unite the efforts of all parties to provide high-quality power exchange and energy replenishment services for drivers, making power exchange faster than refueling; At the same time, E-easy Internet will also launch power exchange and energy replenishment solutions that specifically match the operating market, and build the first brand of power exchange and energy replenishment in the operating market. Up to now, Yiyi Interconnect has deployed and operated over 300 power stations in more than 30 cities including Chongqing, Hangzhou, Guangzhou, Chengdu, Tianjin, Jinan, Xi ‘an and Shenyang. The number of power changes per day exceeds 20,000 times, and the power change per day exceeds 600,000 kWh, and the operating data is growing steadily.

    At present, there are "Cao Cao 60, Maple Leaf 80v, Maple Leaf 60s, Ruilan 9, Ruilan 7, British TX5" which can be used for power exchange in the power exchange station of Easy Connect. More automobile brands are developing power exchange models and joining the power exchange system of Easy Connect one after another.

    Change the electricity to the windward port, and the break is in the present. As an important part of the new energy vehicle industry, the development of power exchange mode is of great significance to promote the popularization and application of new energy vehicles. With its long-term accumulation of outstanding technical strength and strategic layout of the operating market, Easy Internet is bound to lead the industry trend and help the industry upgrade.

　　People’s Daily Online, Beijing, May 13 (Yang Xi) Recently, the release of the main data of the seventh national census has aroused great concern from all walks of life. Some netizens found that the trend reflected by the census data published this time is inconsistent with that published in non-census years, so they raised some questions about individual data.

　　In this regard, the National Bureau of Statistics answered the above questions and related questions of population statistics.

　　How to count and publish population data?

　　At present, China’s demographic survey mainly has three ways:

　　The first is the national census, which is conducted once every ten years in the year when the mantissa meets "0", and the census data is published in China Census Data.

　　The second is the national 1% population sampling survey, which was conducted in the year when the mantissa met "5", and the survey data was published in the National 1% Population Sampling Survey Data.

　　Third, the national sample survey of population changes, the sample size accounts for about 1&permil of the total population; In addition to the census year and the sampling year of 1% population survey, it is conducted once a year, and the survey data are published in the Statistical Yearbook of China and the Statistical Yearbook of Population and Employment of China.

　　The main statistical indicators of the above three types of population data will be published in the annual data in the database of the National Bureau of Statistics.

　　Why is the trend reflected by census data inconsistent with that published in non-census years?

　　The population in non-census years is calculated according to the sampling survey data of that year. Due to the missing rate of sampling surveys in some years, there will be some deviations in the estimated population as a whole, and these deviations will continue to accumulate with the passage of time.

　　Carrying out the population census once every 10 years can comprehensively find out the number, structure and distribution of China’s population, let us know more clearly the development of China’s population in the past 10 years, and provide extremely valuable data for better studying population issues and formulating population-related policies.

　　So how to deal with this inconsistency? According to international practice and common practice, after the census, the annual data published between the two censuses are generally revised according to the census results, so as to reflect the population development track more truly and objectively. In the sixth national census and the just-concluded fourth national economic census, historical data were also revised according to census data. At present, this work is in progress, and the relevant data will be released on schedule after the revision is completed.

　　Is the population statistics based on household registration or residence?

　　At present, China’s population census and population survey are counted and summarized according to the resident population. The time standard for judging the permanent population is half a year, and the space standard is township, town and street.

　　The resident population is an important basic data for formulating the national economic and social development plan, evaluating the national economic production capacity, and evaluating the welfare level of residents. It has a wide range of applications, such as financial expenditure, urban construction, housing construction, allocation of public facilities, education investment, medical investment and public utility investment, etc., which need to be planned according to the size of the resident population.

　　The registered population refers to the registered population in a certain area, regardless of whether they go out or not, as long as they register their permanent residence in the public security household registration management department. The data of registered population is counted by the public security department. For a long time, China has established a set of perfect household registration statistics and management system, which has played an important role in social management.

　　How is the floating population data counted?

　　Floating population refers to the population whose residence is inconsistent with the township street where the household registration place is located, and who has been separated from the household registration place for half a year or more (excluding the separation of households within the municipal area). The survey indicators used to judge and reflect the floating population include: the place of registration, the place of residence at the time of investigation, the time of leaving the place of registration and the reasons for leaving the place of registration. The National Bureau of Statistics formulates a demographic survey system according to the Statistics Law of the People’s Republic of China, conducts demographic surveys on a regular basis, and publishes major demographic data such as permanent population, birth population, dead population, urban and rural population and floating population.

　　editorial comment/note

　　As International Consumer Rights Day, on March 15th every year, all kinds of anti-counterfeiting activities attract the most attention. As consumers, we can complain about rights protection if we eat fake food or buy fake goods; But when we enjoy "spiritual food" and watch "fake movies or TV", can we only admit that we are unlucky and have no recourse?

　　After all, in today’s film and television industry, we have become accustomed to data fraud. In 2016, ip man 3 was found by the regulatory authorities to have a fake box office of 32 million yuan and a box office purchased by the publisher of 56 million yuan; Monster hunt, which set a box office record in 2015, was even more because of the falsification of data, which led the authoritative foreign box office website Box Office Mojo to announce that it would no longer provide box office data of China film market, because it lacked "consistent and accurate" data sources.

　　The TV industry can’t be immune to it. It is reported that the current price of purchasing ratings has climbed to 300,000 to 500,000 yuan per episode, and a satellite TV channel needs to pay 4 billion yuan for ratings fraud throughout the year. In such a big environment, it is no wonder that consumers always suspect that they are watching fake movies or fake TVs that are different from others when watching movies with box office exceeding 100 million or TV dramas with top ten ratings.

　　Truth | law

　　Liu Junhai (Professor, Law School, Renmin University of China)

　　Film and television works are also regulated by the Consumer Protection Law.

　　Beijing News: As consumers, should the audience get some protection when consuming spiritual products? In an environment where fake data is rampant, are we considered to be infringed?

　　Spiritual products are also commodities. It also applies to market rules, including supply and demand rules, so it is completely adjusted by the Consumer Protection Law, which means that the goods and services adjusted by the Consumer Protection Law include film and television works.

　　Therefore, consumers of film and television works certainly enjoy the right to know, the right to choose, the right to fair trade and the right to security. If some cinemas and website platforms falsify and deliberately use water injection data, brush data and box office water injection, this actually constitutes fraud. According to the provisions of the Consumer Protection Law, consumers have the right to ask for a refund of 100 yuan if they buy a ticket with 100 yuan. Pay another 300 yuan.

　　Only in this way can we exert punitive damages, severely punish the faithless, fully compensate the victims and the audience, effectively motivate the rights-defending audience, warn the film and television industry, and at the same time, make things clear.

　　The untrustworthy in the film and television industry should pay the economic price.

　　Beijing News: Zhao Dongling, deputy to the National People’s Congress and screenwriter, suggested that criminal law should be used to punish plagiarism, box office water injection and data brushing. Is it realistic to rely on imprisonment to solve any chaos?

　　Although I am in favor of severe punishment for chaos and severe medicine for furuncle, "severe punishment" and "severe medicine" are not limited to criminal responsibility More importantly, it should activate civil liability. As long as the injured audience gets real money compensation, and the counterfeiters and faithless people really pay the economic price they are unwilling to bear, the effect should be very good.

　　We often say that the market has eyes and the law has teeth. To polish the eyes of the market, it also includes letting consumers pay more attention to their wallets when choosing demonstration works, and rationally choose their favorite film and television works; Temper the teeth of the law, including traditional civil liability, administrative liability, criminal liability, and the current credit sanctions mechanism-not only embarrassing, but also a breach of trust is limited everywhere.

　　In addition, to regulate the chaos in the film and television market, it is necessary to innovate the joint punishment mechanism for dishonesty. For example, when the producer or director of a broken promise works and other creative works reinvest and shoot other films in the future, the competent authorities will know fairly well-permission is troublesome, not to mention applying for relevant loans, participating in the government procurement market, participating in the "Five One Project" and so on, and I am afraid that they will all be missed in the future-equivalent to our court’s handling of "Lao Lai". Let the untrustworthy pay the price and let the honest get the pass. Only in this way can film and television works release positive energy and clear hidden rules.

　　With the improvement of people’s living standards, people have more and more demand for excellent film and television works. In fact, a good work is not a big hit, and it is not necessary to adopt dishonest marketing methods such as thirty-six schemes and larded studies-artists should have a conscience. Moreover, the problem of video data fraud should not be paid attention to until March 15 th Consumer Protection Day. This is a big problem related to the sustainable development of our film and television industry and market. My idea is to create an "audience-friendly" China film and television market, which can be truly shared by all creative parties and ordinary audiences.

　　False | data

　　Lv Yuxiang (teacher of Tsinghua University School of Journalism and Communication)

　　Video data should be supervised, and it is also important for the audience to improve their literacy.

　　Beijing News: During the two sessions, issues such as water injection and data brushing at the box office of film and television dramas were raised by many members. Can this problem be solved by technology?

　　For example, some data platforms can filter out some abnormal data through algorithms. This has long been technically realized. It is not difficult to find false data. The question is, who will make it public? Doing these things requires costs, and it can be done once or twice. In the long run, no one (or institution) will be able to afford it.

　　Data platform is a part of the market, so this problem is not only a matter of data platform, but also a market means. Practitioners are just driven by interests and take advantage of some loopholes that can be exploited. Moreover, no algorithm is perfect, and there will be defects. As long as there is demand in the market, there will always be some people who use it to achieve market goals. This is an industrial chain, but the problem will never be solved by criticizing them without guiding the audience-that is, improving the audience’s aesthetic and ability to distinguish between good and bad.

　　The data platform is not monopolized, and its influence is different.

　　Beijing News: Some members suggested that "monopoly should be broken, and new statistical methods such as real-time ratings should be introduced to realize a scientific system in which multiple ratings survey modes coexist." Can you explain it in detail?

　　In fact, operators, broadcasting systems and media platforms now have their own databases, which may cause other contradictions once they are made public. Official data, such as some ratings survey companies, are actually very few samples in different cities. Using such a small sample to interpret a problem in a large range can reflect a trend, but this sample cannot be used to delve into specific details.

　　If you think that the scoring and box office data of the open platform are very watery, there is actually not only one platform. Some research institutions also have their own monitoring, but their data are generally not completely open and have little influence, but some professionals may refer to them.

　　Can’t rely on the regulatory authorities for everything.

　　Beijing News: Can we rely on the government to establish a third-party data platform to control video data fraud?

　　This goes back to the first question. If the government leads, the government will invest money to be a platform or invest manpower to supervise. Who will this money be invested in? Is it necessary to create a new position? Personally, I don’t think we can let the government do everything, and let the market run and solve it when there is a market mechanism. As far as this issue is concerned, the official responsibility-whether the government or the media-should be to remind the audience not to blindly trust the data. If you know that the fraud is serious, the content itself is not good. As an audience, you should not watch it. This is a personal media literacy problem.

　　In a word, we can’t let the government solve all the problems while calling for decentralization. The establishment of a third-party data platform is not necessary to increase the workload of the management department-and it may not be done well.

　　What can you do if you find "false ratings"?

　　department responsible for the work

　　The Film Industry Promotion Law, which came into effect on March 1, 2017, stipulates that if film distribution enterprises and cinemas make false transactions, falsely report sales revenue, etc., disrupting the order of the film market, the film authorities of the people’s governments at or above the county level shall order them to make corrections, confiscate their illegal income, impose fines according to specific circumstances, and may take measures such as ordering them to suspend business for rectification and revoking their licenses according to the seriousness of the circumstances.

　　consumer

　　According to China’s Law on the Protection of Consumers’ Rights and Interests, business operators should provide consumers with information about goods or services truthfully and comprehensively, and must not make false or misleading propaganda; Consumers also have the right to report and sue acts that infringe on consumers’ rights and interests. Therefore, when we meet relevant operators and use false data in the process of film and television promotion, we can not only write film reviews truthfully, but also report them to relevant departments. □ Xiaoxiao (Master of Laws)