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江汉平原上的江汉油田是湖北省重点石油生产加工企业，石油是目前世界上的能源来源之一，被“工业的大动脉”。但同时石油化工产业也是产生污染的重点行业之一。我们迫切需要研究开发适合我国国情的预处理技术。特别是石油化工、有机原料、农药、染料等化工行业排放的含芳香烃、卤代烷烃、有机硫磷化物等难降解有机污染物废水的污染源削减技术。根据所了解的油田开采工艺流程，简述石油勘探开发过程中污染物的主要来源、油田废水水质特点和油田废水污染特点。
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举一反三
【多选题】国标编号 GB/T 14689-2008中GB代表( )含义,14689代表( )含义,2008代表( )含义。
A.
国标
B.
推荐
C.
国标编号
D.
国标颁布年份
【单选题】In control systems, the three most common control modes do not include ( )
A.
proportional mode
B.
integral mode
C.
derivative mode
D.
addition mode
【简答题】单词匹配
【单选题】The most common mode of narrative writing is __________.
A.
first-person view
B.
second-person view
C.
third-person view
【单选题】The traditional pattern of classroom experience at the college level brings the professor and a group of 20 to 30 students together for a 45-to-50-minute class session two or three times a week. The m...
A.
The traditional teaching pattern at the college.
B.
The teaching pattern at the college.
C.
The content of a class at the college.
D.
The professor and the assistant instructor at the college.
【简答题】这是一个什么图形?点A代表什么含义?点B代表什么含义?你如何描述A点到B点发生的变化?
【单选题】The most common mode of cell division in bacteria is:
A.
Budding
B.
Binary fission
C.
Replication
D.
Mitosis
【多选题】Choose the common features shared by most Victorian fiction:
A.
Most of them teach and entertain, reflecting values of the middle class.
B.
Social realism remains the predominant mode of representation of life.
C.
Third-person omnipresent is the most employed point of view.
D.
Men and women are often portrayed as of equal importance in them.
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