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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1985

I think I had at least a billion tests, including _____ in which they cut out a piece of muscle from my leg and looked at it under a microscope.

A.that B.the one
C.it D.one
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IthinkIhadatleastabilliontests