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

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

28. 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

试题答案

D

解析

标签：hebutfinallyfindto

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