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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1230

Despite their __________ of interest, Fleming kept trying to develop the chemical ___________ it would be safe and effective.

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