原油经过蒸馏加工后,原来的硫化物会更集中在()馏分中。
A、汽油
B、煤油
C、柴油
D、渣油
参考答案:D
—Thank you so much for helping me with my English .
— .
A.With pleasure
B.A pleasure
C.I’m glad to hear that
D.No thanks
什么叫空化现象?