A.CH3-OOC-CH2CH3 B.(CH3)2CH-O-CH(CH3)2 C.CH3-OOC-CH2-COO-CH3 D.CH3CH2-OOC-CH2CH2-COO-CH2CH3
A.增加倍 B.減少倍 C.增加0.41倍 D.增加1倍