_______ windmill generators have supplied enough electricity with the neighboring communities without any one interruption.

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问题 _______ windmill generators have supplied enough electricity with the neighboring communities without any one interruption.

选项 A、Power
B、Powers
C、Powerful
D、Powering

答案C

解析 “风力发电机”是名词,所以空格内应填入修饰它的形容词。powering也可以做形容词用,但表示的是“给……提供动力的”,不符合句意。当纯粹的形容词和分词形式的形容词同存在时,通过句义分析来选择正确答案,但此时一般纯粹的形容词是正确答案。windmill generator意为“风力发电机”。
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