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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 254

---How long has the United Nations ________?
--- ______1945.

A.come into existence; In B.been in existence; Since
C.been in existence; From D.come into existence; For
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HowlonghastheUnitedNations?194