單項選擇題下列化合物具有順反異構(gòu)體的是()
A.CH2=CHCH3
B.CH3CH=C(CH3)2
C.(C2H5)2C=C(CH3)2
D.CH3-CH=CH-CH3
A.CH2=CHCH3
B.CH3CH=C(CH3)2
C.(C2H5)2C=C(CH3)2
D.CH3-CH=CH-CH3