下列有关实验操作及安全知识的叙述正确的是 A.实验室做钠的实验时余下的钠�投入到废液缸中 b.实验室制硝基苯时将硝酸与苯混合后再滴加浓 Template




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tomski下列有关实验操作及安全知识的叙述正确的是 a.实验室做钠的实验时余下的钠�投入到废液缸中 b.实验室制硝基苯时将硝酸与苯混合后再滴加浓 coloring