单项选择题
A.烯烃 B.稠环芳烃 C.正构烷烃 D.环烷烃
A.稠环环烷烃>稠环芳烃>烯烃>环烷烃>烷烃 B.稠环芳烃>稠环环烷烃>环烷烃>烯烃>烷烃 C.稠环芳烃>稠环环烷烃>烯烃>环烷烃>烷烃
A.吸附 B.反应 C.扩散 D.不确定