题目

He is not _______ as a leader but he has gained _______ in teaching. A. success; many experiences                B. a success; much experience C. great success; an experience               D. success; a lot of experience 答案：B 解析: 第一空说明他不是一个成功的领导者，success这里用作可数名词，后半句是说他获得教学经验，所以experience作不可数名词用。

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