One book is enough. 1, the class books come from the class classmate book fund, and the books are supplemented once a month according to the students' reading situation. When adding, write down the bibliography and purchase time for easy reading. 2. Study hard every morning from 7: 00 to 8: 30: 00, at noon11:02: 30-12: 30, and at 5:20-6:20, and you are not allowed to borrow or return books during your study. The time to borrow and return books is between classes. Each student is only allowed to borrow one book at a time, and must sign the title, the borrower's name and the borrowing time.