"The first use of atomic weapon(原子弹)was in 1945,and their po

"The first use of atomic weapon(原子弹)was in 1945,and their power _________ inc"
"The first use of atomic weapon(原子弹)was in 1945,and their power _________ increased ever since．
A.is
B.was
C.has been
D.had been" 半缘_修道 1年前他留下的回答 已收到1个回答

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该名网友总共回答了20个问题，此问答他的回答如下：采纳率：85%

答案C
本题考查动词的时态.ever since从那以后,指从1945以后到现在,所以句子应该用现在完成时态.

1年前他留下的回答

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