1. Winter vacation is not open to the public, but summer vacation should be ok, because our school is not a summer vacation, but a winter vacation.

2. Personally, I think the fifth floor is quiet (just a little high), and books can be borrowed on the third and fourth floors, but it seems that you can enter without documents, but sometimes the administrator will have convulsions = =; You can read on the fifth floor, but you must have a certificate (in fact, the check is not strict, you can borrow a card. . ), you can sit in the study room outside.

3. A certificate is a card. Our school's meal card, right = =

I hope I can help you ~