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【单选题】
2.—What do you think of the lecture of Li Yang’s Crazy English? — I think it’s _______ , but someone thinks it’s much too ________. A. wonderful enough; bored B. enough wonderful; boring C. enough wonderful; bored D. wonderful enough; boring
A. A
B. B
C. C
D. D
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答案
D
解析
D
相关试题
【单选题】
3.—He didn’t go to the lecture this morning, did he?    — _____ .Though he was not feeling very well. A. No, he didnt B. Yes; he did C. No, he did D. Yes, he didnt
A. A
B. B
C. C
D. D
【单选题】
4. If you read a lot, your life ______ full of pleasure. A. will be B. is C. be D. was
A. A
B. B
C. C
D. D
【单选题】
5. The black bag _________ be Annas. She has a blue one. A. should B. cant C. wouldnt D. could
A. A
B. B
C. C
D. D
【单选题】
6. Susan, why are you still here? They are all ready to start. Im sorry, but I _________ when to start. A. dont tell B. wasnt told C. didnt tell D. havent told
A. A
B. B
C. C
D. D
【单选题】
7.—Why dont you choose the red tie?    —For me, it doesn’t _____ my shirt very well. A. fix B. accept C. compare D. match
A. A
B. B
C. C
D. D
【单选题】
8. — Could you tell me ______? I must find him. — Sorry.I don’t know.But he was here just now. A. where Tom was B. where Tom is C. where has Tom gone D. where can I find Tom
A. A
B. B
C. C
D. D
【单选题】
9. —What did Mr Green say to you? — What a heavy rain! How did you come here? He asked________. A. at all B. in fact C. in surprise D. as a result
A. A
B. B
C. C
D. D
【单选题】
10. I often see Tom on the playground.When I passed the playground yesterday, I saw him . A. play; playing B. to play; play C. playing; to play D. playing; play
A. A
B. B
C. C
D. D
【单选题】
11. — Mum, could I have ____________ to drink? — Oh, dear.You can only drink some water.There is _________ in the kitchen. A. anything; else something B. anything; something else C. something; else nothing D. something; nothing else
A. A
B. B
C. C
D. D
【单选题】
12. We all know that learning a foreign language _______ time and effort. A. requires B. reduces C. removes D. repeats
A. A
B. B
C. C
D. D
【单选题】
13. Her son __________ Coke, but now he __________ milk. A. is used to drinking; used to drink B. used to drink; uses to drink C. used to drink; is used to drinking D. is used to drink; is drinking
A. A
B. B
C. C
D. D
【单选题】
14. I don’t know the teacher is talking with Miss Wang. A. what B. whom C. who D. which
A. A
B. B
C. C
D. D
【单选题】
15.Millie does __________ that many people are thankful to her. A. such an important and helpful job B. so important and helpful work C. a very important and helpful job D. such an important and helpful work
A. A
B. B
C. C
D. D
【单选题】
16. I think eating more vegetables is good _______ our health. —Yes, I agree _______ you. A. at, to B. for, with C. to, to D. for, to
A. A
B. B
C. C
D. D
【单选题】
17. I often go on holiday with my parents _____ summer. A. in B. at C. on D. of
A. A
B. B
C. C
D. D
【单选题】
18. I called you at 4:00 yesterday afternoon, but nobody answered. Sorry, I ______ with my friends at that time. A. had swum B. swam C. would swim D. was swimming
A. A
B. B
C. C
D. D
【单选题】
19.––Who is on the playground? ---__________.    A. Never B. None C. No one D. A lot
A. A
B. B
C. C
D. D
【单选题】
20. The schoolboy ______ a blind man cross the street yesterday. A. helps B. helped C. will help D. has helped
A. A
B. B
C. C
D. D
【单选题】
21. —The 2010 World Expo which will last 184 days will be held in Shanghai on May 1st. —________exciting news! We shall try our best to support it. A. How B. How an C. What D. What an
A. A
B. B
C. C
D. D
【单选题】
22. They preferred ______ in bed rather than _____ horses.    A. to lie; to ride B. lying; riding C. lying; ride D. to lie; ride
A. A
B. B
C. C
D. D
【单选题】
23. —What was Jim wearing at the party? — Nothing _______. He was in his usual shirt and jeans. A. special B. simple C. important D. interesting
A. A
B. B
C. C
D. D
【单选题】
24. The 2016 Olympic Games ________ in Brazil. Would you like to go there? Maybe, if possible. A. are held B. will be held C. were held D. have been held
A. A
B. B
C. C
D. D
【单选题】
25. — David, look at the man in white over there.Can you tell me _______ ? —He is a doctor.    A. who is he B. who he is C.what does he do D. what he does
A. A
B. B
C. C
D. D
【单选题】
( ) 26.With help from a Mr. H, you can__________. A. stop wearing your watch B. get new books and objects C. finish your homework on time D. know when parents or teachers are near
A. A
B. B
C. C
D. D
【单选题】
( ) 27. A PENGO WATCH CONTROL can help you to ______________. A. repair your TV B. put away your books and objects C. become a James Bond D. get a daily weather report
A. A
B. B
C. C
D. D
【单选题】
( ) 28. You can get your Mr. H for___________. A. $299 B. $499 C. $199 D. $99
A. A
B. B
C. C
D. D
【单选题】
( ) 29. When was canned food invented? A. In 1870.          B. In 1810. C. In 1902.          D. In 1926.
A. A
B. B
C. C
D. D
【单选题】
( ) 30. After the trip to the Arctic, Clarence Birdseye invented ____________. A. canned food             B. can openers C. frozen food           D. air conditioning
A. A
B. B
C. C
D. D
【单选题】
( ) 31. Changes in weather _____________ in Willis Carrier's company. A. helped to keep food           B. made rooms comfortable C. caused health problems        D. hurt printing paper
A. A
B. B
C. C
D. D
【单选题】
( ) 32. According to the passage, which of the following may lead to inventions? A. People's needs.             B. Public support. C. Modern technology.          D. Practical suggestions.
A. A
B. B
C. C
D. D
【单选题】
( ) 33. 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】
( ) 34. 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】
( ) 35. 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
【单选题】
( ) 36. What may be the proper Chinese for the underlined part in the passage?    A.闲暇时光 B.学费 C.精神空虚 D.经济不足
A. A
B. B
C. C
D. D
【单选题】
( ) 37. The Chinese Yellow Sea Wetlands are in the _______ of China.    A.south           B.east    C.west            D.north
A. A
B. B
C. C
D. D
【单选题】
( ) 38. Usually the weather in the wetlands is _______.    A.hot             B.pleasant   C.cold            D.dry
A. A
B. B
C. C
D. D
【单选题】
( ) 39. The World Wetlands Day is on _______.    A.February 2        B.June 25   C.April 22      D.March
A. A
B. B
C. C
D. D
【单选题】
( ) 40. We must protect wetlands because _______. A.they are home for wildlife   B.they can prevent flood    C.they can offer food to the animals and birds D.all of the above
A. A
B. B
C. C
D. D
【单选题】
) 1. —Is it far from here to the bank? —Not very, only________. A. 20 minute’s walk B. 20 minutes walk C. 20 minutes’ walk D. 20 minutes’ walks
A. A
B. B
C. C
D. D
【单选题】
2. — After discussing, the students ________ some good ideas to work on the project. — Thats great! A. put up B. set up C. caught up with D. came up with
A. A
B. B
C. C
D. D
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液压传动装置实质上是一种能量转换装置
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液压泵按其结构不同可分柱塞泵、齿轮泵、叶片泵、螺杆泵及凸轮转子泵
A. 对
B. 错
【判断题】
柱塞泵按其柱塞排列方向不同,可分为径向柱塞泵和轴向柱塞泵两类。
A. 对
B. 错
【判断题】
液压缸一般用于实现回转运动,液压马达一般用于实现直线往复运动或摆动
A. 对
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【判断题】
根据液压缸的结构形式,可将液压缸分为活塞式液压缸、柱塞式液压缸和摆动式液压缸
A. 对
B. 错
【判断题】
双出杆活塞式液压缸的特点是被活塞分隔开的液压缸两腔中都有活塞杆伸出,但两活塞杆直径不相等
A. 对
B. 错
【判断题】
当实心双出杆液压缸右腔镜进油,左腔回油时,活塞左移,反之活塞右移。
A. 对
B. 错
【判断题】
单向阀的作用是只允许油液按一个方向流动,不能反向流动
A. 对
B. 错
【判断题】
换向阀的作用是利用阀芯和阀体间相对位置的改变,来控制油液流动方向,接通或关闭油路,从而改变液压系统的工作状态
A. 对
B. 错
【判断题】
换向阀按阀芯的可变位置数,可分为三位和四位
A. 对
B. 错
【判断题】
根据改变阀芯位置的操纵方式不同,换向阀可分为手动、机动、电磁和液动
A. 对
B. 错
【判断题】
电磁换向阀是利用电磁铁推动阀芯移动控制油流方向的
A. 对
B. 错
【判断题】
压力控制阀按工作原理及功用不同可分为溢流阀、顺序阀和减压阀
A. 对
B. 错
【判断题】
溢流阀的主要功用是保持系统压力的恒定和防止液压系统过载,起安全保护作用
A. 对
B. 错
【判断题】
直动型溢流阀一般用在压力较低或流量较小的场合
A. 对
B. 错
【判断题】
减压阀的作用是用来降低液压系统中某一油路的压力,以满足执行机构需要的
A. 对
B. 错
【判断题】
减压阀与溢流阀的主阀芯都是三节杆
A. 对
B. 错
【判断题】
在常态下减压阀主阀阀芯的阀口是开口的,而溢流阀是关闭的
A. 对
B. 错
【判断题】
普通节流阀只适用于负载和温度变化不大或速度稳定性要求较低的液压系统
A. 对
B. 错
【判断题】
液压辅件是由滤油器、油箱、蓄能器、油管和管接头组成
A. 对
B. 错
【判断题】
使用滤油器则是保持油液清洁的主要手段
A. 对
B. 错
【判断题】
根据油箱的液面与大气是否相通,可分为开式油箱和闭式油箱
A. 对
B. 错
【判断题】
液压回路是用图形符号画出的液压系统
A. 对
B. 错
【判断题】
在现代汽车及汽车维修机械中常用的方向控制回路有换向回路、锁紧回路、定位回路等
A. 对
B. 错
【判断题】
对锁紧回路的要求是:可靠,迅速,平稳
A. 对
B. 错
【判断题】
在液压系统中,利用压力控制阀来控制系统中油液的压力,使系统实现定压、增压、减压、卸载等功能的基本回路称为压力控制回路
A. 对
B. 错
【判断题】
调压回路的功用是调定或限制液压泵的最高压力,利用该回路可以实现多级压力的调节、控制和切换
A. 对
B. 错
【判断题】
增压回路是实现液压放大的回路
A. 对
B. 错
【判断题】
减压回路适宜用在降压大,流量大的场合。
A. 对
B. 错
【判断题】
速度控制回路是控制和调节液压执行元件的运动速度的基本回路。
A. 对
B. 错
【判断题】
节流调速回路适用于定量泵的液压系统
A. 对
B. 错
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根据节流阀在回路中安装的位置不同,节流调速回路分为进油节流调速回路、回油节流调速回路和旁路节流调速回路三种基本形式
A. 对
B. 错
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B. 错
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对于新投入使用的设备,使用三个月左右清洗油箱,更换新油,以后按设备说明书的要求,每隔半年或一年进行一次清洗和换油。
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B. 错
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我定期检查的时间间隔一般与过滤器的检修期相同,通常为2至3个月。
A. 对
B. 错
【判断题】
综合检查大约两年一次
A. 对
B. 错
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传感器是实现自动检测和自动控制的首要环节。
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B. 错
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