单项选择题
A.正构烷烃 B.芳香烃 C.环烷烃 D.烯烃
A.带侧链的环烷和异构烷烃 B.带侧链的正构烷烃 C.烯烃 D.芳香烃
A.高度分支的异构烷烃 B.正构烷烃 C.环烷烃 D.分支少的异构烯烃
A.环烷烃 B.正构烷烃 C.芳香烃 D.异构烯烃
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