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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1401

It is uncertain ______ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.

A.that B.whether C.how D.what
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Itisuncertainsideeffectsthesew