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A mixture of water and methanol increases the power of the engine.

A水和甲醇的混合物增加了发动机的功率。

B水和乙醇的混合物增加了发动机的功率。

C水的混合物和丙醇增加了发动机的功率

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正确答案：A （备注：此答案有误）

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