单项选择题

Questions 18 to 20 are based on the following passage.
When you are looking for a book you should write the following on slips EXCEPT

A. the pages of the book.
B. the call number of the book.
C. the title of the book.
D. the author of the book.

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单项选择题

单项选择题

Questions 18 to 20 are based on the following passage. When you are looking for a book you should write the following on slips EXCEPT 您的浏览器不支持 audio 元素。