A.質(zhì)荷比 B.波數(shù) C.偶合常數(shù) D.保留值
A、R帶 B、E帶 C、B帶 D、K帶
A、CH3-CH2-CH2-CH3 B、CH3-CH2-CH2-OH C、CH2=CH2 D、CH3-CH=CH-CH=CH-CH3