如图所示的实验方法装置或操作完全正确的是 A. 稀释浓h2so4b.萃取时振荡c. 石油的蒸馏d. 验证催化剂的效果——青夏教育精英家教�—— Template




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tomski如图所示的实验方法装置或操作完全正确的是 a. 稀释浓h2so4b.萃取时振荡c. coloring