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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1490

Dr. Frank failed many times but he finally _________ to find a successful way to solve the problem.

A.broke through B.put up C.picked out D.gave away
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Dr.Frankfailedmanytimesbuthefi