After a long struggle Sam finally got the better of himself. The underlined part means___

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After a long struggle, Sam finally got the better of himself. The underlined part means______.

A.improved

B.beat

C.influenced

D.prevented

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗