题目内容
(请给出正确答案)
[主观题]
What does the underlined word" they" (line 3 , Para. 3) refer to?[ A] Rare books. [ B
What does the underlined word" they" (line 3 , Para. 3) refer to?
[ A] Rare books.
[ B ] Library users. .
[ C] Book owners.
[ D] Library conditions.
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