单阀使制动缸压力增至250kpa以上，缓解不顺利或不缓解是何原因？

发布时间：2017-07-02 02:21 │ 来源：www.tikuol.com

题型：问答题简答题

问题：

单阀使制动缸压力增至250kpa以上，缓解不顺利或不缓解是何原因？

考点：钳工技能考试中级内燃机车制动钳工中级内燃机车制动钳工题库

题型：问答题简答题

如图为鲫鱼的外形图，据图回答下面问题

（1）从外形上看，鲫鱼的身体呈梭形，有利于减少______．

（2）从外形上看，鲫鱼的体色______，是一种保护色．

（3）鲫鱼的身体两侧各有一行______，其作用是______．

（4）鲫鱼的运动器官是鳍，能控制鱼前进方向的是______．（填数字）

查看答案

题型：问答题简答题

完形填空。

     There are times when people are so tired that they fall asleep almost anywhere. We can see there is a lot
of sleeping on the bus or train on the   1   home from work in the evenings. A man will be   2   the newspaper,
and seconds later it   3   as if he is trying to   4   it. Or he will fall asleep on the shoulder of the stranger   5
next to him.   6   place where unplanned short sleep   7   is in the lecture hall where a student will start snoring
(打鼾) so   8   that the professor has to ask another student to   9 the sleeper awake. A more embarrassing
(尴尬) situation occurs when a student starts falling into sleep and the  10  of the head pushes the arm off the
11 , and the movement carries the  12  of the body along. The student wakes up on the floor with no  13  of
getting there. The worst time to fall asleep is when  14 . Police reports are full of  15  that occur when people
fall into sleep and go  16  the road. If the drivers are  17 , they are not seriously hurt. One woman's car,  18 ,
went into the river. She woke up in four feet of  19  and thought it was raining. When people are really  20 ,
nothing will stop them from falling asleep-no matter where they are.

( )1. A. way
( )2. A. buying
( )3. A. acts
( )4. A. open
( )5. A. lying
( )6. A. Next
( )7. A. goes on
( )8. A. bravely
( )9. A. leave
( )10. A. size
( )11. A. cushion
( )12. A. action
( )13. A. memory
( )14. A. thinking
( )15. A. changes
( )16. A. up
( )17. A. lucky
( )18. A. in time
( )19. A. dust
( )20. A. tired

B. track
B. folding
B. shows
B. eat
B. waiting
B. Every
B. ends up
B. happily
B. shake
B. shape
B. desk
B. position
B. reason
B. working
B. events
B. off
B. awake
B. at first
B. water
B. drunk

C. path
C. delivering
C. appears
C. find
C. talking
C. Another
C. lasts
C. loudly
C. keep
C. weight
C. shoulder
C. rest
C. question
C. walking
C. ideas
C. along
C. calm
C. as usual
C. grass
C. lonely

D. road
D. reading
D. sounds
D. finish
D. sitting
D. One
D. returns
D. carelessly
D. watch
D. strength
D. book
D. side
D. purpos
D. driving
D. accidents
D. down
D. strong
D. for example
D. bush
D. lazy

查看答案

题型：问答题简答题

53[配伍选择题]医疗机构购进药品，应建有真实完整的（）

A.药品购进记录

B.检查验收制度

C.通风措施

D.供货单位

查看答案

题型：问答题简答题

冲水的主要作用是运输物料和湿润物料。

查看答案

题型：问答题简答题

作用机理为内吸的杀虫剂有：（）。

查看答案

更多题库