中国石油大学 / 中石油
正确率:100%
22. The oil industry can be divided into______
A、upstream sector
B、downstream sector
C、top stream sector
D、low stream sector
E、midstream sector
A、upstream sector
B、downstream sector
C、top stream sector
D、low stream sector
E、midstream sector
参考答案:
佳题速递: