10.实验室常用加热乙醇和浓硫酸的混合液来制取乙烯在这个反应里浓硫酸的作用 A既是反应物又是脱水剂 B既是反应物又是催化剂 C既是 Template




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tomski10.实验室常用加热乙醇和浓硫酸的混合液来制取乙烯在这个反应里浓硫酸的作用 a既是反应物又是脱水剂 b既是反应物又是催化剂 coloring