化学实验过程中要规范操作注意实验安全.下列做法中正确的是 A.加热时玻璃仪器底部接触灯芯b.洒在实验台上的酒精失火立即用湿布盖灭c.试验 Template




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tomski化学实验过程中要规范操作注意实验安全.下列做法中正确的是 a.加热时玻璃仪器底部接触灯芯b.洒在实验台上的酒精失火立即用湿布盖灭c.试验 coloring