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氯及其化合物

> 用自来水养鱼时，通常先将自来水晒一段时间后再注入鱼缸，目的是 ( ) A．提高水温 B．增加水中氯气的含量 C．除去水中少量的次氯酸 D．用紫外线杀死水中的细菌

问题：

发布时间：2024-09-10

用自来水养鱼时，通常先将自来水晒一段时间后再注入鱼缸，目的是 ( )

A．提高水温 B．增加水中氯气的含量

C．除去水中少量的次氯酸 D．用紫外线杀死水中的细菌

参考答案：

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