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> （2011年山东济宁，12题）将垃圾分类回收利用，既节约资源，又防止污染，符合可持续发展的要求。例如：破铁锅、坏车架、废弃易拉罐、旧电线和铝材下脚料等可归为一类回收，它们属于 A．金属 B．氧化物 C．盐 D．有机物

问题：

发布时间：2024-09-10

（2011年山东济宁，12题）将垃圾分类回收利用，既节约资源，又防止污染，符合可持续发展的要求。例如：破铁锅、坏车架、废弃易拉罐、旧电线和铝材下脚料等可归为一类回收，它们属于

A．金属 B．氧化物 C．盐 D．有机物

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