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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
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When you don’t know some words in reading, it is not a good idea              in a dictionary at once.

A.look up them B.looking up them
C.to look them up D.look them up
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Whenyoudon’tknowsomewordsinrea