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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1601

About 90 percent of the equipment presented by the administration, as well as the facilities of our own,     made good use of in the teaching.

A.have B.has C.have been D.has been
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About90percentoftheequipmentpr