Why can't parents drive when students are healthy?

Network or system problems. Why can't students connect to their parents because of network or system problems? If there is a network problem, please reconnect to the network. If you have system problems, you can contact the platform customer service to solve them. The "one-stop access to students' health" platform can quickly report information, and it is a three-level linkage platform for parents, class teachers and school doctors. The Municipal Center for Disease Control and Prevention "supports" the health of students in the city. As soon as a student is absent due to illness, as long as the parents report, the teacher and the school doctor can receive the notice at the same time.