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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较难
  • 浏览 1595

A cat, ______ it is a white one ______ a black one, is considered to be a good cat as long as it can catch mice.

A.both; and B.not only; but also
C.either; or D.whether; or
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相关知识点

Acat,itisawhiteoneablackone,is