进行化学实验必须注意安全下列做法正确的是 A.在实验室里可用品尝的办法区别食盐和蔗糖晶体b.氢氧化钠有强烈的腐蚀性实验使用时最好戴上 Template




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tomski进行化学实验必须注意安全下列做法正确的是 a.在实验室里可用品尝的办法区别食盐和蔗糖晶体b.氢氧化钠有强烈的腐蚀性实验使用时最好戴上 coloring