A CH2=CH2B CH3CH2OHC CH3CHOD CH3COOH1.A的结构简式是CH2=CH22.加成反应3.CH3COOH+NaOH→CH3COONa+H2O4.2CH3CH2OH+2Na→2CH3CH2ONa+H2↑5.CH3CH2OH+CH3COOH→浓硫酸加热→CH3COOCH2CH3+H2O