【单选题】
汽车喇叭按纽按下___，松开按纽停止鸣喇叭，否则可能出现故障。
A. 可以启动发动机
B. 喇叭响
C. 可以停熄发动机
D. 可以起步
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相关试题
【单选题】
高层建筑火灾扑救中，第一出动力量按五辆消防车为一战斗编成时，通常可选择重型水罐消防车、高（中）低压泵水罐消防车、___、举高喷射消防车和抢险救援消防车等。
A. 举高消防车
B. 泡沫消防车
C. 排烟消防车
D. 城市主战消防车
【单选题】
核放射探测仪测量使用过程中，应穿着___，做好个人防护。
A. 防化服
B. 隔热服
C. 核生化防护服
D. 战斗服
【单选题】
高层建筑火灾扑救中，第一出动力量按三辆消防车为一战斗编成时，通常可选择高（中）低压泵水罐消防车和两辆中型水罐消防车等。其中一辆中型水罐消防车占据水源，利用___控制火势、掩护救生。
A. 水泵接合器
B. 室内消火栓系统
C. 室外消火栓系统
D. 固定消防设施
【单选题】
下列属于便携危险化学品检测片功能特点的有___。
A. 可在极端高温和低温环境下使用
B. 需要电源
C. 使用前需要校正
D. 需要液体样本比对
【单选题】
下列属于便携危险化学品检测片功能特点的有___。
A. 可在极端高温和低温环境下使用
B. 需要电源
C. 使用前需要校正
D. 需要液体样本比对
【单选题】
海事卫星电话的几种状态中REGISTERING是指___。
A. 设备在查找网络，这个状态的时间可能会很短，用户有可能看不到这个状态；
B. 正在注册到BGAN网络，如果定位不成功，将显示NOGPS，如果这样请重新定位；
C. 设备已经注册到网络，可以进行各种业务；
D. 设备已经连接到计算机；
【单选题】
便携危险化学品检测片可检测强酸、强碱、___、氟气、硫化氢、碘、光气、磷化氢、二氧化硫和氨气。
【单选题】
电子酸碱测试仪pH值分辨率达___。
A. 0.1
B. 0.2
C. 0.3
D. 0.4
【单选题】
以下关于红外线生命探测仪描述正确的是___。
A. 受温度影响严重
B. 空间传播衰减大
C. 水、冰、泥土阻挡失效
D. 易受环境杂物反射干扰
【单选题】
雷达生命探测仪无法获取___等障碍物后的生命体微动信息。
A. 废墟
B. 砖混结构墙体
C. 墙壁
D. 金属遮挡物
【单选题】
雷达生命探测仪连续工作时间不少于___。
【单选题】
生化洗消装置喷沫量为___。
A. 8㎡/min
B. 15㎡/min
C. 18㎡/min
D. 25㎡/min
【单选题】
暖风发生器用于向洗消站（帐篷）内输送暖风或自然风，实现空气流通，并通过___保持适宜的室内温度。
A. 加湿器
B. 升温器
C. 恒温器
D. 加温器
【单选题】
暖风发生器抽有压力为___。
A. 0.7Mpa
B. 0.8Mpa
C. 0.9MPa
D. 1MPa
【单选题】
一体化消防业务信息系统数据库身份验证模式是___。
A. 独立模式
B. 大集中模式
C. 独立模式和混合模式
D. 混合模式
【单选题】
以我国消防队伍配备的某型公众洗消站为例，操作压力___。
A. 0.02MPa
B. 0.1MPa
C. 0.5MPa
D. 1MPa
【单选题】
以我国消防队伍配备的通用型强酸、碱洗消器，容量为___。
【单选题】
以我国消防队伍配备的通用型强酸、碱洗消器，时效为___。
A. 1-2年
B. 1-3年
C. 1-4年
D. 1-5年
【单选题】
强酸、碱洗消器主动清洗技术可对___硫酸等高浓度化学腐蚀剂的喷溅进行有效清洗。
A. 50%
B. 60%
C. 98%
D. 97%
【单选题】
现场简易通信的主要方法有哪些___。
A. 手势、旗语、哨音、号音、灯光、绳索
B. 方势、旗语、哨音、、灯光、绳索
C. 方势、、哨音、号音、、绳索
D. 手势、旗语、号音、灯光、绳索
【单选题】
Chlorine/Fluorine中文叫___。
A. 氯/氟
B. 氯/氧
C. 氩/氟
D. 氯/氙
【单选题】
强碱pH＞8.5英文叫___。
A. Phosgene
B. Basic (high pH)
C. Ammonia (NH3)
D. Lodine
【单选题】
Acid（low pH）中文叫___。
A. 强酸pH＜5
B. 强酸pH＝5
C. 强酸pH＞5
D. 强酸pH＞6
【单选题】
当气瓶压力为3MPa＜P＜30Mpa，减压器膛室压力为___时，减压器输出流量≥300L/min。
A. 0.3±0.15 Mpa
B. 2.0±0.15 Mpa
C. 1.5±0.15 Mpa
D. 0.7±0.15 Mpa
【单选题】
便携危险化学品检测片使用时间为___。
A. 24h
B. 48h
C. 72h
D. 96h
【单选题】
电绝缘服的耐酸碱能保证___不渗透。
A. 三十分钟内
B. 一小时内
C. 二十分钟内
D. 两小时内
【单选题】
气压制动系统产生制动失效的可能原因为___。
A. 空气压缩机传动带打滑
B. 前轮前束不对称
C. 快放阀排气慢
D. ABS系统失效
【单选题】
转向沉重的原因可能为___。
A. 转向器啮合副间隙过大
B. 转向器啮合副间隙过紧
C. 前束过大
D. 前束过小
【单选题】
电子气象仪的维护保养和注意事项表述不正确的是___。
A. 保持清洁、置于干净阴凉的地方
B. 不用时取出电池,每隔4到5个月取出开机
C. 轻拿轻放、避免仪器接触到水
D. 非专业人员不得使用
【单选题】
消防隔热服抗断裂能离不小于___。
A. 600N
B. 550N
C. 500N
D. 450N
【单选题】
点火式发动机判断低压电路故障时，检查分电器断电器触点是否闭合，发现不能闭合，应该___。
A. 更换断电触点
B. 调整断电触点间隙
C. AB均对
D. 以上均不对
【单选题】
救援顶杆主要由手柄、换向手轮、双向液压锁、固定支撑、油缸、活塞杆、移动支撑、高压软管等组成，额定工作压力63MPa，最大撑顶力___，闭合长度475mm，作业覆盖范围475～1325mm。
A. 120KN
B. 110KN
C. 115KN
D. 125KN
【单选题】
音频生命探测仪有效探测半径_，工作时间不少于___。
A. 20m 8h
B. 20m 12h
C. 50m 8h
D. 50m 12h
【单选题】
气门间隙过大，使用单缸断油方法，声音___。
A. 变化明显
B. 不变
C. 变化不明显
D. 以上均不对
【单选题】
驾驶员在行车中，发现机油压力过低，停车检查，其步骤应为___。
A. 润滑系泄漏，机油变质，机油压力表，机油压力传感器
B. 机油压力传感器，机油压力表，机油变质，润滑系泄漏
C. 机油压力表，润滑系泄漏，机油压力传感器，机油变质
D. 以上均不对
【单选题】
发动机过热，可能是___。
A. 节温器损坏
B. 点火提前角过大
C. 发动机短时间大负荷工作
D. 百叶窗开度足够大
【单选题】
平行投影根据投射线与投影面是否垂直的位置关系可被分为正投影和___
A. 垂直投影
B. 斜投影
C. 侧投影
D. 中心投影
推荐试题
【单选题】
Tom is a book lover. ______ likes reading very much.
A. He B. She C. You D. It
【单选题】
—May I listen to the music here, Mr. White?
—Sorry, you’d better it like that．
A. not to do B. not do to
C. dont do D. not do
【单选题】
3.—Did you have a good time at Lauras birthday party?
— Yes, indeed. Its several years ________ I enjoyed myself so much.
A. when B. before C. since D. that
【单选题】
4. —___________ is the Summer Palace from here?
About three kilometers away. You can take the No. 35 bus.
A. How long B. How far C. How often D. How much
【单选题】
5. I was looking for a birthday gift for my mother, but I couldnt find ______ suitable.
A. anything B. something C. nothing D. everything
【单选题】
6. A friend of my ____ and I are going to visit_______ next week．
A. father; Browns B. father's; Browns
C. father; the Browns D. father's; the Browns
【单选题】
7. She ______ very hard since she came to our school.
A. studies B. has studied C. is studying D. studied
【单选题】
8. — Who will send you to the new school, your mom or your dad?
— _______. Ill go there by myself.
A. Both B. Either C. Neither D. None
【单选题】
9.—Well do what we can ____English well this term．
—It’s high time for you to work hard．
A. study B．to study C. be studied D. be studying
【单选题】
10. —I’m going to Flower Bookstore. Could you tell me ______?
— Sorry, I don’t know. I’m new here.
A. where it is B. where was it C. where is it D. where it was
【单选题】
11. How do you like the dishes, Eric?
— Fantastic! Nothing tastes ________.
A. nice B. better C. terrible D. worse
【单选题】
12. ______ Lin Feng has to work late, she always wears a smile on her face.
A. Because B. If C. Until D. Though
【单选题】
13.You can save money _______ you buy cheaper things.
A. before B. unless C. if D. until
【单选题】
14. We will have a _________ holiday after the exam．
A. two-month B. two month’s C. two month D. two-months
【单选题】
15. —We will build an underground in Xuzhou before 2015．
— Wow, _______! Will it pass our place?
A. what an excited news B. how excited the news is
C. what exciting news D. how exciting
【单选题】
16. — Emily, here’s a dictionary．I hope it will help you in some way．
— Thank you．It’s ________ what I need．
A. almost B. still C. only D. just
【单选题】
17. —Oh．I’m hungry．Mum, can I have the hamburger on the plate?
—No．It tastes ．
A. terribly B. terrible C. good D. well
【单选题】
18. —We can invite our teachers to the farewell party next Saturday.
—Yes, ______? I’ll call them at once.
A. what for B. what C. why not D. why
【单选题】
19.You can ________ ask the old man to move away to any other place because he has lived ________ here for at least sixty years．
A. hardly; alone B. hard; alone
C. hardly; lonely D. hardly; lonely
【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
