Peking University

Tsinghua/Not really.

Whether the website can go in and try it yourself will be known. I am on campus, so I can't verify the website of Peking University, but it seems that I can access the website of Tsinghua.

There are two ways to enter the library of Peking University. One is that if you know students, you can borrow their campus cards, but it will be bad if this is found. The other is to exchange (1) my second-generation ID card, (2) my valid certificate (work permit or student ID card) or company letter of introduction for the "temporary reading card of Peking University Library". According to the specified time, you can go to the reading room and reading area to consult books and periodicals. Tsinghua should be similar.