下列实验设计中不能达到目的是 A.用盐酸除去�属表面的铁锈b.用盐酸和石灰水检验鸡蛋壳中是否有碳酸根c.选用银片硫酸亚铁硫酸铜来验证 Template




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tomski下列实验设计中不能达到目的是 a.用盐酸除去�属表面的铁锈b.用盐酸和石灰水检验鸡蛋壳中是否有碳酸根c.选用银片硫酸亚铁硫酸铜来验证 coloring