三个完全相同的杯子里装有同样多的水,把质量都为300g的铝块、铁

三个完全相同的杯子里装有同样多的水,把质量都为300g的铝块、铁块、铜块分别浸没在这三杯水中(水均未溢出),则水面最高的是(ρ铝<ρ铁<ρ铜)(   )
A.放入铝块的杯子B.放入铁块的杯子C.放入铜块的杯子D.无法确定

答案

A解析:
质量都为300g的铝块、铁块、铜块,密度大的体积小,所以体积有大到小的顺序是铝块、铁块、铜块,放入水中时,水面最高的是放入铝块的杯子。

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