A.(CH3)2NCH2CH3 B.CH3(CH2)3NH2 C.C6H5N(CH3)2 D.CH3CH2CH(CH3)CH2NHCH3
A.膽堿 B.膽胺 C.甘油 D.長鏈脂肪酸
A.正丙胺 B.N-乙基苯胺 C.芐胺 D.N-甲基乙酰苯胺