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【题目】Which of following belongs to clean energy?

A.CO2B.H2C.coalD.N2

【答案】B

【解析】

句意:下面哪个属于清洁能源?

考查名词辨析和常识。CO2二氧化碳;H2氢气;coal煤炭;N2氮气。二氧化碳和氮气是不能燃烧的,所以不属于清洁能源,故排除AD;煤炭可以燃烧,但是煤燃烧时除了产生大量的二氧化碳之外,也会产生一氧化碳、二氧化硫等有毒气体,所以不属于清洁能源,故排除C项;氢气燃烧的产物是水,属于清洁能源。故选B

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