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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 332

Despite their______of interest, Fleming kept trying to develop chemical     ______ it would be safe and effective.

A.lack, so as to B.lacking, so as to
C.lack, so that D.lacking, so that
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Despitetheirofinterest,Fleming