A.(CH3)2NH B.(CH3)3N C.(CH3)3CNH2 D.CH3NH2
A.CH3OC6H5 B.CH3CHOHCH2CH3 C.CH3COCH2CH3 D.CH3CH2CH2CHO
A.卵磷脂 B.腦磷脂 C.神經(jīng)磷脂 D.肌醇磷脂