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【题目】These light bulbs look the same,but their ______ on the environment are different.
A.solutions
B.methods
C.effects
D.secrets

【答案】C
【解析】考查名词词义辨析.句意:这些电灯泡看起来一样,但是他们对环境的影响是不同的.solutions解决方案.methods方法、方式.effects效果,影响.secrets秘密.这里应该指的是这些电灯泡看起来一样,但是他们对环境的影响是不同的.只有C选项符合题意.故选C.

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