在烃类热裂解生产乙烯中，提高温度有利于（）次反应，减短停留时间有利于（）次反应。A 二一B 二二C 一一D 一二 - 查题网

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国家开放大学 / 化工产品生产技术

在烃类热裂解生产乙烯中，提高温度有利于（）次反应，减短停留时间有利于（）次反应。
A 二一
B 二二
C 一一
D 一二

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化工产品生产技术

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