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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 120

--- Was it by cutting down unnecessary expenditure ______ Mr. Simon saved the firm?
--- No, it was by improving work efficiency.

A.when B.what C.how D.that
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Wasitbycuttingdownunnecessarye