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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 732

AIDS is said_______ the biggest health challenge to both men and women in the earth over the past four years.

A.that it is B.to have been C.that it has been D.to be
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AIDSissaidthebiggesthealthchal