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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1754

The factory produces half a million pairs of shoes every year, 80% ______ sold abroad.

A. of which B. of whose C. of them D. of that
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Thefactoryproduceshalfamillion