13.将纯锌片和纯铜片按图示方式插入同浓度的稀硫酸中一段时间以下叙述正确的是 A.两烧杯中铜片表面均无气泡产生 b.甲中铜片是正极乙中铜片 Template




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tomski13.将纯锌片和纯铜片按图示方式插入同浓度的稀硫酸中一段时间以下叙述正确的是 a.两烧杯中铜片表面均无气泡产生 b.甲中铜片是正极乙中铜片 coloring