Foreign schools can enter the open classroom, but it is not welcome in theory. I really lost something or something, so I'll trouble you first.
There is no special study room, only large and small classrooms.
Small classrooms are often occupied by various departments and class activities, and self-study in large classrooms is your only possible choice (not to say that large classrooms will never be occupied, but the probability is low).
The library has the best conditions and basically has no occupation, but it needs a student ID card to get in, but it can't get in. Borrowing a card is risky (camera), don't try.