未知题型

A.Rare
B.
B.Library
C.
C.Book
D.
D.Library
【参考答案】

A
解析:推理题。根据上文可知,they指代our copies of many of the most imp......

(↓↓↓ 点击下方‘点击查看答案’看完整答案 ↓↓↓)