中国石油大学 / 中石油
正确率:100%
30. What of the fowllowing items are impossible to achieve by direct separation of these materials from crude petroleum.?
A、gasolines
B、sulfur
C、aromatic solvents
D、some asphalts
E、carbon dioxide
A、gasolines
B、sulfur
C、aromatic solvents
D、some asphalts
E、carbon dioxide
参考答案: