1, Beijing Winter Olympics was held in China, Beijing and Zhangjiakou.

The 2022 Beijing Winter Olympics, an international Olympic event hosted by China, opened on February 4, 2022 and closed on February 20, 2022.

In 2022, there will be seven major events in the Beijing Winter Olympics, with 15 events and 109 events. Beijing Division undertakes all ice events and freestyle skiing, Yanqing Division undertakes snowmobiles, sledges and alpine skiing, and Zhangjiakou Division undertakes all snow events except snowmobiles, sledges, alpine skiing and freestyle skiing.

2. The first independently developed maglev 3.0 train is in service.

China's first commercial maglev 3.0 train with completely independent intellectual property rights has recently completed relevant dynamic tests and system joint debugging tests on Tongji University's high-speed maglev test line. From the commercial maglev 1.0 version (speed 100 km/h) and 2.0 version (speed 160 km/h) to the current version 3.0 (speed 200 km/h), China has realized the speed increase of100 km/h.

3. the 3.MU5735 passenger plane crashed.

At about 2/KOOC-0/day/KOOC-0/4: 20 on March 2022, a Boeing 737 passenger plane (MU5735) of China Eastern Airlines crashed while performing a mission from Kunming to Guangzhou. At present, on-site rescue, after-care disposal and accident cause investigation are under way.

In the core area of crash search and rescue, rescuers found the wreckage of the plane and personal belongings such as wallets, ID cards and bank cards of the missing persons, but no missing persons have been found.