Each volunteer corresponds to different levels of schools, and the first volunteer is the provincial key. No.1 Middle School, No.1 Middle School and No.3 Middle School in Xianggang belong to the provincial key points. You can only choose one to fill in. The second choice is the focus of the municipal level. There seems to be only three schools in No.11 Middle School, and the third choice is ordinary high school. It seems that there are only a few schools. If you volunteer like this, the latter two are equal to not volunteering.