A.10% B.5% C.1% D.0.5%
A.正構(gòu)烷烴 B.異構(gòu)烷烴 C.環(huán)烷烴 D.芳香烴
A.體積平均沸點(diǎn) B.質(zhì)量平均沸點(diǎn) C.中平均沸點(diǎn) D.立方平均沸點(diǎn)