光照条件下，下列各组物质中几乎没有反应的是A．甲烷与溴蒸气

光照条件下，下列各组物质中几乎没有反应的是

A．甲烷与溴蒸气 B．甲烷和氧气 C．氢气和氯气 D．甲烷和氯气

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光照条件下，下列各组物质中几乎没有反应的是A．甲烷与溴蒸气

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