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    【题目】The scientists in China are trying ______ways to reduce pollution.

    A. look for B. find out. C. to look for D. found out

    【答案】C

    【解析】

    句意：中国的科学家正在努力寻找减少污染的方法。look for寻找，find out查明。根据宾语ways to reduce pollution可知此处表示寻找减少污染的方法，try to do sth努力做某事，故用动词不定式to look for。故选C。

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