From February 26 to 27, hbxhq welcomed returning students for the spring semester of 2022. On the morning of February 26, a group of university leadership inspected the work on pandemic prevention and control and adjusted working focuses on school-return procedures, prevention and control protocols and environmental sanitation. A thorough campus pandemic prevention and control system has been established with emphases on key areas, key personnel and key links thus building a strong defense line for campus security