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NASA: Navigation failure caused the mission of the "Wit" Mars helicopter to end. NASA said on December 11 that the investigation and evaluation of the "Wit" Mars helicopter showed that the navigation system failure was the cause of the rotor damage and the end of the mission during its landing. The "Wit" helicopter landed on Mars with the American "Perseverance" rover on February 18th, 2021. It weighs about 1.8 kilograms, has four rotors, and is powered by solar panels for lithium batteries. On April 19th of the same year, Wit completed its first flight on Mars. On January 18th this year, Wit made its 72nd and last flight to Mars. Because its rotor blades were damaged during the landing, it could not fly again, and NASA announced the end of its mission. On the 11th, NASA announced the investigation results of the last flight of Wit. The evaluation shows that the navigation system of "Wit" can't provide accurate data during its flight, causing a series of failures, leading to the end of its mission. (Xinhua News Agency)The four-door version of Wuling Hongguang MINIEV was opened for booking. On December 12th, the four-door version of Wuling Automobile Official Xuan Hongguang MINIEV was officially opened for booking. The car has three color schemes, four doors and four seats, with a body size of 3256*1510*1578mm and a wheelbase of 2190 mm.Xia Yiping, CEO of Extreme Vietnam, was surrounded by employees of Extreme Vietnam in the Shanghai office. On December 12th, Xia Yiping, CEO of Extreme Vietnam, was surrounded by employees of Extreme Vietnam in the Shanghai office. Xia Yiping said: "We are actively solving the problem. I hope everyone will give some time." At present, there are relevant departments at the Shanghai headquarters of Extreme Vietnam to maintain order at the scene. (per meridian)

Ma Huateng People's Daily wrote: Promote the healthy and sustainable development of the digital economy. Ma Huateng said in the People's Daily that Tencent, as a digital technology enterprise, actively responded to the deployment of the country to expand domestic demand and actively explored the development of digital consumption. By optimizing consumer tools such as WeChat payment, the company tries to create and serve effective demand and promote economic cycle by testing the e-commerce business such as live delivery of water video numbers. At the same time, Tencent relies on the WeChat ecosystem to enhance the absorption and friendliness of employment and entrepreneurship. Last year, it provided employment income opportunities for more than 50 million people. In the future, Tencent will also increase investment, devote itself to technological innovation and industrial upgrading, and jointly contribute to the stable and healthy development of China's economy with the vast number of private enterprises.Afternoon comment: the index opened lower and went higher, and the index rose more than 1% in half a day. The concept of ice and snow industry rose in early trading, and the three major indexes opened lower and went higher in early trading, and the index rose more than 1% in half a day. In terms of sectors, the concept of ice and snow industry rose in early trading, with Jingxue saving energy by 20cm, and Rhine Sports, Snowman and Dalian Shengya trading daily. The retail sector has experienced a daily limit, and Zhongbai Group, Youa Shares, Friendship Group and other collective daily limit; Chinese medicine stocks fluctuated strongly, and Panlong Pharmaceutical had a daily limit; The concept of humanoid robot continued to pull back, and Fenda Technology led the decline; Sora concept stocks bottomed out in early trading, and Fushi Holdings was among the top losers; The concept of machine vision was weakly adjusted, and Taier shares fell by a word. Overall, stocks rose more and fell less, with more than 2,900 stocks rising. On the disk, the ice and snow industry, duty-free shops and retail sectors were among the top gainers, while PEEK materials, automation equipment and science and technology innovation new shares were among the top losers.Ethereum hit $3,900/piece, up 1.81% in the day.

Goldman Sachs: If the branch managers' meeting in January concludes that there is insufficient incentive for SMEs to raise wages next year, the Bank of Japan may postpone raising interest rates until March or April next year.The Supreme People's Procuratorate issued the prescribed guidelines to strengthen the substantive examination of technical evidence in injury cases. Recently, the Supreme People's Procuratorate issued the Provisions of the People's Procuratorate on the Substantive Examination of Technical Evidence in Injury Cases (the Working Provisions) and the Guidelines on the Special Examination of Expert Opinions on the Degree of Human Injury in Injury Cases (the Special Examination Guidelines), making efforts to strengthen the substantive examination of technical evidence in injury cases and further improving the professional and standardized level of examination and handling of injury cases.According to the data of Cat's Eye Professional Edition, the movie "Lone Star Project" was released for 6 days, and the total box office broke 70 million.