社会上一些不法分子用黄铜(铜锌合金)冒充黄金进行诈骗。为了辨

社会上一些不法分子用黄铜(铜锌合金)冒充黄金进行诈骗。为了辨别真伪,以下方法可行的是

A.观察颜色  B. 称重量   C.加入稀盐酸中   D.用磁铁吸引

答案

C

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