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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1043

--How about the book you are reading?
--Good indeed. It ______many problems we have come across in our study.

A.contains B.covers C.refers D.concentrates
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Howaboutthebookyouarereading?G