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水是生�的基础没有水就没有生�．下列有关水的说法不正确的是 A．水是由两个氢元素和一个氧元素组成的b．锅炉中使用硬水容易产生水垢严重时 Template






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tomski水是生�的基础没有水就没有生�．下列有关水的说法不正确的是 a．水是由两个氢元素和一个氧元素组成的b．锅炉中使用硬水容易产生水垢严重时 coloring
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