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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 763

If penicillin _____________ available, many people ______________ from sickness.

A.weren’t , would have died B.shouldn’t be, would die
C.hadn’t been, would have died D.is, will die
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Ifpenicillinavailable,manypeop