单项选择题

Text Two
Welcome to the university library. This tour will 65 . First of all, the library’s collection of books, reference materials, and other resources are found on levels one to four of this building. Level one 66 . On level two, you will find our circulation desk, current periodicals and journals, and our copy facilities. Our science and engineering sections can be found on level three. Finally, group study rooms and the multimedia center are located on level four. Undergraduate students can 67 for two weeks. Graduate students can check out fifteen books for two months. Books can be renewed up to two times.

66（）

点击查看答案&解析