漫游猫认证
1.CH2=CH(CH2)3CH3
2.CH3CH=CH(CH2)2CH3
4.CH2=C(CH3)CH2CH2CH3
5.CH3C(CH3)=CHCH2CH3
7.CH3CH(CH3)CH=CHCH3
8.CH2=CHCH(CH3)C2H5
9.CH3CH=C(CH3)C2H5