22. Dr. Frank failed many times but he finally_______to find a successful way to solve the problem.A

题目简介

22. Dr. Frank failed many times but he finally_______to find a successful way to solve the problem.A

题目详情


22. Dr. Frank failed many times but he finally_______to find a successful way to solve the problem.
A.broke offB.broke upC.broke downD.broke through
题型:单选题难度:偏易来源:不详

答案

D

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