单项选择题
A.CH3NH2 B.(CH3)2NH C.(CH3)3N D.CH3NHCH2CH3
A.甲胺 B.二甲胺 C.三甲胺 D.甲乙胺
A.CH3CH2COOCH3 B.CH3COOCH2CH3 C.HCOOCH3 D.CH3CH2COOCH3CH2
微信扫一扫,加关注免费搜题