搜题请搜索小程序“爱下问搜题”
问题 多项选择题

地层流体进入井筒内的条件不同，液面升高的速度也不同，表述正确的有（）等。

A、高渗透性的高压油气层时，负压差较大，泥浆罐液面快速升高

B、高渗透的油气层时，负压差小，泥浆罐液面升高很慢

C、低渗透性的高压层时，井底虽存在较大负压差泥浆罐液面升高缓慢

D、钻开高压气层后，井底存在负压差，开始时罐内液面上升缓慢而后快速升高

E、抽汲导致天然气进入井内临近井口体积迅速膨胀，引起泥浆罐液面快速上涨

答案

参考答案：A, B, C, D, E

填空题

单词拼写。

1. He c____ working as if nothing had happened to him.

2. The weather was freezing cold and mother put another b____ on the bed.

3. Parents should e____ their children to behave well.

4. He had a feeling of t____ when he talked about the prison.

5. Too many____ (活动) take up too much of our precious time for study.

6. They were ____ (战斗) in order to defend their independence.

7. He ____ (接受) a present from his friend.

8. All countries, big and small, should be ____ (平等).

9. The world will never forget the ____ (残忍) of the American soldiers to Iraqi prisoners.

10. Do you know the person who o____ the meeting yesterday?

查看答案
单项选择题

闻气味，若患者妊娠剧吐，口腔有烂苹果味多为

A．肝火上逆

B．气虚挟痰

C．胃火上炎

D．气阴两虚

E．胃气虚弱
查看答案