A.CH3CH=CHCH3與CH2=CHCH2CH3 B.CH3CH2CH2OH與CH3CH2OCH3 C.CH3COCH2CH2OCH3與CH3CH2COOCH2CH3 D.CH2=CHOH與CH3CHO
A.環(huán)戊烷 B.環(huán)戊烯 C.1,3-環(huán)戊二烯 D.1,4-環(huán)己二烯
結(jié)構(gòu)中有幾個(gè)伯碳,幾個(gè)仲碳,幾個(gè)叔碳和幾個(gè)季碳()
A.3,4,4,1 B.4,4,4,0 C.4,3,5,0 D.5,4,3,0