【判断题】
工业毒物由呼吸道、消化道、皮肤等器官进入人体.其进入人体的主要途径是皮肤
查看试卷，进入试卷练习
微信扫一扫，开始刷题
相关试题
【判断题】
为达到对压缩机各轴承的良好润滑和冷却目的，必须严格控制润滑油的压力和温度。正确答案、
【判断题】
单位应当将消防安全工作纳入内部检查、考核、评比内容。正确答案、
【判断题】
氮气置换时要将各系统隔离，被置换的系统压力要高于其他系统，以防空气窜入。正确答案、
【判断题】
精炼石油产品制造业属于职业病危害严重的行业。正确答案、
【判断题】
安全阀的排泄量取决于阀座口径和伐瓣开启度。正确答案、
【判断题】
现场处置方案的应急组织与职责主要包括、基层单位应急自救组织形式及人员构成情况
【判断题】
在甲烷化反应器降温过程中，当温度降至200 ℃时，应将富氢气体切换成氮气进行保压降温，以防止镍和一氧化碳反应生成剧毒性的羰基镍。正确答案、
【判断题】
防毒面具使用前应先检查全套面具的气密性。正确答案、
【判断题】
油罐发生火灾时并不是所有油品都会产生沸腾突溢。正确答案、
【判断题】
现场操作人员碱液灼伤后应首先逬行医务处理
【判断题】
液氨大规模事故性泄漏会形成低温云团引起大范围人群中毒，遇明火还会发生空间爆炸
【判断题】
有关单位应当适时检测、维护其报警装置和应急救援设备、设施.使其处于良好状态.确保正常使用
【判断题】
裂解炉在进行空气烧焦时不一定要与生产系统切断加堵盲板.阀门关闭即可
【判断题】
笫294、燃料气夹帯液体进入炉膛会造成炉子正压燃烧，火从着火孔外冒会烧坏炉子周围的仪表和电气没备
【判断题】
氨急性重度中毒可导致肺泡性肺水肿或急性呼吸窘迫综合征，甚至窒息
【判断题】
超高压蒸汽温度低的危害有降低超高压蒸汽品位，造成驱动设备能耗増加。正确答案、
【判断题】
往复式压缩机吸入气体温度升高，将提髙压缩机的生产能力提高
【判断题】
火炬气回收系统运行是否稳定，不会影响到火炬的稳定燃烧
【判断题】
生产经营单位生产工艺和技术发生变化的应急预案不需要修订
【判断题】
应总物资装备保障必须明确应急救摄需要使用的应急物资和装备的类型、数量、性能、存放位置、管理责任人及其联系方式等内容
【判断题】
为了乙烯收本的最大化，经标定得出最佳护出口温度（COT）即可提高裂解炉COT到该控制点操作不需要考虑设备及管线情况
【判断题】
正压式空气呼吸器使用过程中，一旦听到报警声应准备结束在危险区工作并尽快离开危险区
【判断题】
现场处置方案中重要物资装备的名录或清单应列出应急预案涉及的重要物资和装备名称、型号、存放地点等
【判断题】
石油化工企业的生产区直位于邻近城镇或居民区全年最小频率风向的上风侧
【判断题】
企业发生有害物大量外泄事故或火灾事故现场应设警戒线
【判断题】
冷区看火时应注意不能一概用水扑救（高温设备会因骤冷，低温设备会因骤热而泄漏更加严重)
【判断题】
环境污染按环境要素可划分为大气污染、水污染和土填污染
【判断题】
可燃性混合物的爆炸下限越低，爆炸极限范围越宽，其爆炸危险性越小
【判断题】
安全帽带要系紧，防止因松动而降低抗冲能力
【判断题】
当透平机组发生水冲击，应加强巡检，注意维护，不必停车处理
【判断题】
管道的最大工作压力是随着介质工作温度的升高而升高
【判断题】
爆炸是物质在瞬间以机械功的形式释放出大量气体、液体和能量的现象。其主要特征是压力的急剧下降
【判断题】
限制火灾爆炸事故蔓延的措施是分区隔离，配置消防器材和设置安全阻火装置
【判断题】
压缩机开车前需要进行暖管、保证蒸汽进入透平机时不带凝酒、避免叶片损坏
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
