单选题 Man:I thought the librarian said we could check out as many books as we need with our library cards. Woman: That's right, but not those reference books. Question: What does the woman mean?

A、 Students with a library card can check any book out.
B、 Reference books are not allowed to be checked out.
C、 Only students with a library card can check out reference books.
D、 The number of books a student can check out is unlimited.

【正确答案】 B

【答案解析】女方说的“but not those reference books'’相当于“but we could not check out those reference books”(但我们不能外借那些参考书)。B的内容与本句意思一致，所以是正确答案。