【单选题】
负释压活门的作用是：___
A. 避免超温
B. 避免过大的负压差
C. 避免过大的正压差
D. 防止内部的压力高于外界太多
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答案
B
解析
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相关试题
【单选题】
正常情况下，根据驾驶舱空气控制面板和乘务员面板所选择的区域温度___
A. 配平空气活门控制加入空调分配管路的热空气来获得需要的客舱温度
B. 配平空气活门控制加入空调分配管路的冷空气来获得需要的客舱温度
C. 调节组件流量活门开度大小，控制组件的工作效率来获得需要的客舱温度
D. 调节冲压空气活门开度大小，控制组件热交换器工作效率，从而获得需要的客舱温度
【单选题】
空调舱通风的作用是___
A. 空调舱通风由电子设备通风控制器监控，由NACA进气口引入冲压空气进行通风
B. 空调舱通风由组件控制器监控，由NACA进气口引入冲压空气进行通风
C. 空调舱通风由区域温度控制器监控，由NACA进气口引入冲压空气进行通风
D. 空调舱通风由增压控制器监控，由NACA进气口引入冲压空气进行通风
【单选题】
如果想知道客舱的实际温度和设定温度，可以看那个ECAM的系统页面？___
A. 增压页面（PRESS)
B. 空调页面（COND)
C. 引气页面（BLEED)
D. 门和氧气页面（DOOR/OXY)
【单选题】
如果想知道外流活门的开关状态，可以看那个ECAM的系统页面？___
A. 增压页面（PRESS)
B. 空调页面（COND)
C. 引气页面（BLEED)
D. 门和氧气页面（DOOR/OXY)
【单选题】
如果想知道温度控制活门（TCV)的状态以及组件出口温度，可以看那个ECAM的系统页面？___
A. 增压页面（PRESS)
B. 空调页面（COND)
C. 引气页面（BLEED)
D. 门和氧气页面（DOOR/OXY)
【单选题】
如果想知道流量控制活门（FCV)的开关状态，可以看那个ECAM的系统页面？___
A. 增压页面（PRESS)
B. 空调页面（COND)
C. 引气页面（BLEED)
D. 以上都可以
【单选题】
再循环风扇过热停止运转后___
A. 可以通过维护控制面板的复位电门进行复位
B. 可以在MCDU通过CMC进行复位
C. 可以在风扇上按压复位电门进行复位
D. 应该更换该循环风扇，送厂家进行检修
【单选题】
再循环活门的作用是：___
A. 当双组件不工作时，关闭，切断去到电子舱的混合空气
B. 当双组件不工作的时候，关闭，切断去到电子舱的再循环空气
C. 当双组件不工作的时候，关闭，保证电子舱通风冷却的效果
D. 当双组件不工作的时候，切断去到电子舱的冷却空气
【单选题】
配平空气关断活门的作用是：___
A. 一旦出现过压现象的时候，切断掺混空气
B. 当管道过热的时候，切断熱空气气路
C. 当系统故障时，切断空调组件的流量
D. 当一个掺混空气压力调节活门故障时，打开，使熱空气可以供到相应的管路
【单选题】
空调组件旁通活门的作用是：___
A. 当ACM故障时，旁通ACM
B. 当相应的组件控制器故障时，旁通ACM
C. 当区域控制器故障时，旁通ACM
D. 当温度调节活门故障时，旁通ACM
【单选题】
空调组件再加热器的作用是：___
A. 给组件出口的冷空气，再加热，调节温度
B. 给进入压气机的空气再加热，调节温度
C. 给进入涡轮的空气再加热，蒸发掉残余的水分微粒
D. 给涡轮出口的空气再加热
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( ) 32. What does the expression “to touch all bases” mean?
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( ) 33. The Chinese Yellow Sea Wetlands are in the _______ of China．
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1.—Hello! This is Henry Speaking．I’d like to speak to your father．
—Sorry, he has Shanghai．
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2. — It’s difficult for the village children to cross the river for school．
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5. There are three English-books on the shelf, but ______ of them is mine.
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6. When the parents arrived at the hall, the students _______ their projects.
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11. —Excuse me, may I use your bicycle? ______ is broken.
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A. Mine B. Me C. Myself D. I
A. A
B. B
C. C
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【单选题】
12. —Simon, what do I need to take for the hiking?
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B. B
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13. Helen ______ to a language school when she was seven.
A. sent B. is sent C. will send D. was sent
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C. C
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14. — Is this park you’ve visited recently?
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B. B
C. C
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【单选题】
15. — It’s difficult for the village children to cross the river for school.
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16. — Could you tell me when Mr. Li ________ in Huaibei?
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C. C
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【单选题】
) 17.There is ________ 800-metre-long road behind ________ hospital．
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【单选题】
18. — Did you see a girl in yellow pass by just now?
— No, sir. I ________ a magazine.
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【单选题】
19.In fact, my parents are not only kind to me, but also strict ________ me.
A. at B. to C. for D. with
A. A
B. B
C. C
D. D
【单选题】
20. The boy_____ a yellow sweater can_____ himself now．
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A. A
B. B
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D. D
【单选题】
21. —Jack, I haven’t seen your brother for a long time．
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A. went to B. has gone to C. has been in D. has been to
A. A
B. B
C. C
D. D
【单选题】
22. The meat with eggs tastes ______. Would you like some more?
A. nice B. well C. bad D. wonderfully
A. A
B. B
C. C
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【单选题】
23. — Look! The man standing at the gate ______ be our headmaster．
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A. A
B. B
C. C
D. D
【单选题】
24. The Japanese government must do everything ________ polluted water from running into rivers, lakes, seas and oceans．
A. keep B. kept C. Keeping D. to keep
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B. B
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【单选题】
25. —Hi, Jack．Did you go to Jim’s birthday party?
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A. A
B. B
C. C
D. D
【单选题】
( ) 26. Where does the writer of "The little Prince" come from?
A．England． B．France． C．America． D．China．
A. A
B. B
C. C
D. D
【单选题】
( ) 27. What does the prince do after the fox tells him a secret?
A．He cares more about a flower and a sheep．
B．He meets many more strange adults on other planets．
C．He realizes his love for the rose and he goes back to his planet．
D．He discovers interesting things such as a snake, other roses and a fox．
A. A
B. B
C. C
D. D
【单选题】
( ) 28. What does "The little Prince" mainly talk about? It' s about _________．
A．the adult world B．the planet B -612
C．a rose and a fox D．the adventure of a young prince
A. A
B. B
C. C
D. D
【单选题】
( ) 29. What is the writer's main purpose（目的）in writing this passage？
A．To tell the readers his life story．
B．To tell people what kind of person his father was．
C．To tell the readers what present he got from his father．
D． To let people know how poor he was．
A. A
B. B
C. C
D. D
【单选题】
( )30 Why did the father not ask his son not to do this and do that？
A．Because he felt quite confident of his son．
B．Because he was born from a poor family．
C．Because he was a man of few words．
D．Because he didn't want to be much too strict with his son．
A. A
B. B
C. C
D. D
【单选题】
( ) 31. What would someone learn from this passage？
A．How to live by oneself． B．How to stand on one's own feet．
C．What a good father should do． D．What the self-important is like．
A. A
B. B
C. C
D. D
