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The first use of atomic weapons was in 1945 and their power increased enormously

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The first use of atomic weapons was in 1945 and their power increased enormously

The first use of atomic weapons was in 1945 and their power__       increased enormously ever since.

A. is       B. was        C. has       D. had been

 

试题答案

C

标签：wasweaponsinandfirst

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