ch3ch2ch(ch3)ch(c2h5)ch(ch3)ch3 是什么东西?
ch3ch2ch(ch3)ch(c2h5)ch(ch3)ch3 是什么东西?
CH3CH2CH(CH3)CH(C2H5)2如何命名?
CH3-CH(C2H5)-CH(CH3)-(CH2)3-CH3是什么
CH3CH(C2H5)CH2CH(CH3)CH(C2H5)CH(CH3)2是什么?
CH3CH3和CH3CH2CH(CH3)CH(CH3)CH3是什么关系?
CH3CH2CH(C2H5)CH(CH3)2CHCH(CH3)2,用系统命名法命名,是什么?
CH3-CH(CH3)-CH(CH3)-CH(C2H5)-CH2(CH3)系统命名法是什么
cH3-CH(C2H5)-CH(CH3)(C2H5)-CH3的名称
ch3ch2ch(ch3)ch(ch3)oh 叫什么?
CH3-CH(CH3)-CH(C2H5)-CH3怎么命名
CH3CH(CH3)CH(C2H5)C(CH3)3
CH3CH(C2H5)CH(CH3)2