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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1196

A survey was carried out on the death rate of those who were infected by Ebola Virus, __________were frightening.

A.of that results B.of which results
C.the results of that D.the results of which
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Asurveywascarriedoutonthedeath