相关试题
【单选题】
汽车的经济车速是指___。
A. 最高车速
B. 以低挡行驶最省油的车速
C. 以中间挡位行驶最省油的车速
D. 以高挡行驶最省油的车速
【单选题】
制动效能的稳定性是指___。
A. 制动时无侧滑
B. 抗热衰退性和抗水衰退性
C. 最大制动力不变
D. 制动时无跑偏
【单选题】
汽车制动器制动力___地面制动力。
A. 大于
B. 小于
C. 大于或等于
D. 等于
【单选题】
汽车与地面的附着系数___。
A. 与轮胎类型无关
B. 在制动过程中，随滑移率的变化而变化
C. 在制动过程中，始终为常数
D. 在制动过程中，逐渐减小
【单选题】
车辆抱死时产生的最大减速度与附着系数___。
A. 成正比
B. 成反比
C. 不成比例
D. 无关
【单选题】
汽车产生制动热衰退的原因是___。
A. 制动鼓过热
B. 制动蹄的摩擦材料含有有机聚合物
C. 制动蹄受热变形
D. 制动鼓变形
【单选题】
为防止汽车制动跑偏，要求后轴左右轮制动力之差不大于该轴轴荷的___。
【单选题】
在企业的经营活动中，下列选项中的___不是职业道德功能的表现。
A. 激励作用
B. 决策能力
C. 规范行为
D. 遵纪守法
【单选题】
在商业活动中，不符合待人热情要求的是___。
A. 严肃待客，表情冷漠
B. 主动服务，细致周到
C. 微笑大方，不厌其烦
D. 亲切友好，宾至如归
【单选题】
___是企业诚实守信的内在要求。
A. 维护企业信誉
B. 增加职工福利
C. 注重经济效益
D. 开展员工培训
【单选题】
职业纪律是从事这一职业的员工应该共同遵纪的行为准则，它包括的内容有___。
A. 交往规则
B. 操作程序
C. 群众观念
D. 外事纪律
【单选题】
某导体在3min内均匀流过横截面的电量为9C，问流过该导体的电流是___mA。
【单选题】
有一台220V、750W的取暖器，接在220V的电源上工作2小时，它将消耗的电能是___kWh。
A. 0 .75
B. 1.5
C. 2.25
D. 3
【单选题】
下列叙述正确的是___。
A. 功率越大的电器电流做的功越多
B. 加在电阻上的电压增大到原来的2倍，则它们消耗的功率增大到原来的4倍
C. 功率大的用电器一定比功率小的用电器消耗的能量多
D. 大小不同的负载，消耗功率大者电流必定也大
【单选题】
通电线圈插入铁心后，它的磁感应强度将___。
【单选题】
___将油液的压力转换为机械能带动负载运动。
A. 液压泵
B. 液压缸
C. 压力阀
D. 方向阀
【单选题】
___时，液压系统不能稳定工作。
A. 高温
B. 低温
C. 常温
D. 高温或低温
【单选题】
目前，除少数重型汽车外，其余多采用___式动力转向装置。
A. 常流式
B. 常压式
C. 电动式
D. 其他形式
【单选题】
“ ”表示___。
A. 换向阀
B. 单向阀
C. 顺序阀
D. 液压缸
【单选题】
___平衡机按静平衡原理工作。
A. 就车式
B. 离车式
C. 液压式
D. A或B
【单选题】
汽车发电机“L”接线柱与___相连。
A. 充电指示灯
B. 点火开关
C. 蓄电池
D. 搭铁
【单选题】
门电路有___输出端。
A. 一个
B. 多个
C. 两个
D. 一个或多个
【单选题】
正温度系数热敏电阻随温度升高阻值___。
【单选题】
全面质量管理的主要特点是突出“___”字。
【单选题】
___决定了相关总成、部件和汽车的工作平衡程度。
A. 振动
B. 噪声
C. 总成清洁度
D. 动、静平衡程度
【单选题】
在轻型车排放物中CO，含量不大于___。
A. 4.5%
B. 6%
C. 7%
D. 8%
【单选题】
某一汽车零件的修理工艺规程的最佳方案有___。
【单选题】
确定汽车修理工艺规程的原则，关于技术上的先进性，甲说：“要尽量用新技术新工艺，采用先进检测手段，要不断增强自动化程度”；乙说：“不论条件，优先使用新技术新工艺”。说法不正确的是___。
A. 甲
B. 乙
C. 甲和乙
D. 甲和乙都不正确
【单选题】
汽车主要零件的修复方法有机械加工法、焊接法、振动堆焊法、电镀、刷镀、喷涂、电火花加工以及___。
A. 粘结法
B. 局部更换法
C. 调整翻转法
D. 压力加工修复法
【单选题】
发动机气门导管与承孔的配合过盈一般为___ mm。
A. 0.01～0.04?
B. 0.02～0.06
C. 0.025～0.085
D. 0.05～0.10
【单选题】
→___→精机械加工。
A. 喷丸处理
B. 表面热处理
C. 镀络
D. 喷涂处理
【单选题】
发动机曲轴材料要求较高的耐疲劳强度和耐磨性，轴颈表面要经过___。
A. 氮化和高频淬火
B. 正火
C. 回火
D. 退火
【单选题】
画零件工作图的步骤是：选择比例、幅面，画底图，___，描深，审核。
A. 校核
B. 选择基准
C. 画结构形状
D. 标注尺寸
【单选题】
CB-9型微机车轮动平衡测试仪的显示控制部分，工作启动键是___。
A. “START”
B. “STOP”
C. “STATIC”
D. “TEST”
【单选题】
承修车辆多、车型较单一的汽车修理厂应采用___劳动组织形式。
A. 综合作业法
B. 专业分工作业法
C. 就车修理法
D. 固定修理法
【单选题】
汽车零件分类的主要依据是___。
A. 尺寸、形位误差、表面质量
B. 尺寸、形状
C. 材料性能、尺寸、形状
D. 硬度、位置误差
【单选题】
奥迪A6发动机ATX和APS的曲轴修理尺寸有___级，级差为 0.25mm。
推荐试题
【单选题】
20.—I’m going back to see my grandparents this weekend．
—________．
A. It’s very nice of you B. You’d better hurry
C. Say goodbye to them D. Give my best wishes to them
【单选题】
21.—Why not take ____ umbrella with the sign “Made in China”? It is useful.
—What _______ good advice it is!
A. an; a B. a; a C. an; \ D. \; a
【单选题】
22. —Do you know the boy________ is sitting next to Peter?
— Yes. He is Peter’s friend. They are celebrating his ________ birthday.
A. who; ninth B. that; ninth C. /; ninth D. which; ninth
【单选题】
23. It was dark, ______ I couldnt see what was happening.
A. or B. though C. but D. so
【单选题】
24.—You can use MSN to talk with Vivien on the Internet.
—I know. But can you tell me ________?
A. what I can use it B. when I can use it
C. why can I use it D. how can I use it
【单选题】
25. _______ are you going to the School Uniform Exhibition, Amy ?
To learn about different styles of school uniform.
A. What B. Where C. Which D. Why
【单选题】
( ) 26. Where does the writer of "The little Prince" come from?
A．England． B．France． C．America． D．China．
【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
【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
【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．
【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．
【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．
【单选题】
( ) 32. 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
【单选题】
( ) 33. Why did Natalie Smith pay for the six cars behind her?
A. She had seven tickets.
B. She hoped to please others.
C. She knew the car drivers well.
D. She wanted to show kindness.
【单选题】
( ) 34. Judy Foreman copied down the phrase because she ___ .
A. thought it was beautifully written
B. wanted to know what it really meant
C. decided to write it on a warehouse wall
D. wanted her husband to put it up in the classroom
【单选题】
( ) 35. Who came up with the phrase according to the passage?
A. Judy Foreman. B. Natalie Smith. C. Anne Herbert D. Alice Johnson.
【单选题】
( ) 36. What can we infer from the last paragraph?
A. People should practice random kindness to those in need.
B. People who receive kindness are likely to offer it to others.
C. People should practice random kindness to strangers they meet.
D. People who receive kindness are likely to pay it back to the giver.
【单选题】
( ) 37.The greatest river for navigation is ___________.
A. the Nile B. the Amazon C. the Mekong D. the Mississippi
【单选题】
( ) 38. From a dam, people can use the water for ___________.
A. keeping the rivers clean B. only making electricity
C. irrigation and making electricity D. washing clothes
【单选题】
( ) 39. The water in the river is polluted because of _____________.
A. people's drinking water too much B. people's swimming in the river too much
C. chemicals and other materials D. people's building a dam across a river
【单选题】
( ) 40. The best title of the passage is ___________.
A. Rivers in Cities B. The importance of Rivers
C. Transportation D. Natural Resources
【单选题】
) 1. Even Tony’s six-year-old son asked him ______ smoking.
A. stops B. stopped C. to stop D. stopping
【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
【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
【单选题】
4. If you read a lot, your life ______ full of pleasure.
A. will be B. is C. be D. was
【单选题】
5. The black bag _________ be Annas. She has a blue one.
A. should B. cant C. wouldnt D. could
【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
【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
【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
【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
【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
【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
【单选题】
12. We all know that learning a foreign language _______ time and effort.
A. requires B. reduces C. removes D. repeats
【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
【单选题】
14. I don’t know the teacher is talking with Miss Wang．
A. what B. whom C. who D. which
【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
【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
【单选题】
17. I often go on holiday with my parents _____ summer.
A. in B. at C. on D. of
【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
【单选题】
19.––Who is on the playground? ---__________．
A. Never B. None C. No one D. A lot
