相关试题
【判断题】
裂解炉废锅裂解气侧泄露的主要原因为安装存在问题，投用时未热把紧以及吹扫时废锅入口温度太低等
【判断题】
管子切断前应移植原有标记。低温钢管及钛钢管、严禁使用钢印
【判断题】
氨气容易加压液化成液氨，液化时吸收周围大量的热
【判断题】
各级安全生产监督管理部门应当将应急于预案的培训纳入安全生产培训工作计划并组织实施本行政区域内重点生产经营单位的应急预案培训工作
【判断题】
裂解炉辐射段炉管出现裂缝后必须马上停炉
【判断题】
单位或者个人违反《中华人民共和国突发事件应
【判断题】
有毒区域氧气含量低于18%或者有毒气体体积大于2%时，任何滤毒罐都起不到防护作用
【判断题】
进入生产装置可以携带火种，但不得随便使用
【判断题】
钛系催化剂的中毒可分为暂时中毒、永久性中毒
【判断题】
职业性危害因素所致职业危害的性质和强度取决于危害因素的本身理化性能
【判断题】
清洁的生产过程要求企业采用少废、无废的生产工艺技术和高效生产设备
【判断题】
安全帽的主要作用是防止物料下落击中头部及行进中碰撞突出物而受伤
【判断题】
如因塔内碳三组分增加导致脱碳四塔的塔压高，这一不安全团素属于工艺条件发生变化
【判断题】
应用化学平衡移动原理可知.降低温度、提高压力有利于氮的生成
【判断题】
运行的裂解炉汽包人孔把紧时，作业人员不需要采取防烫伤的防护措落
【判断题】
离心泵轴承箱内的润滑油位一般应高于滚动体
【判断题】
对不具备回收利用条件而向大气排放的废气应当进行防治污染处理
【判断题】
发现火灾迅速拨打119电话报警，消防队救火不收费
【判断题】
压缩机轴位移过大，会损坏止推轴承，转子朝低压端常动，转子和定子发生碰撞
【判断题】
可燃性混合物的燥炸下限越低，爆炸极限范围越宽，其爆炸危险性越小
【判断题】
为减轻污水处理装置负满，一下雨应立即将装置内水分流到清净下水系统
【判断题】
裂解炉烧嘴结垢后将出观火焰方向不正确、喷气量不定、燃烧不完全、雾化不好、回火等观象
【判断题】
金属的腐蚀绝大多数是由化学腐蚀引起的，化学腐蚀比电化学腐蚀快的多危害更大
【判断题】
裂解炉辐射段炉管不能自由位移，自由位移会引起炉管在裂解炉投用时振动加大导致炉管变形
【判断题】
在高压下使用乙烯，具有与可燃气体-空气化混合物同样的危验性
【判断题】
毒物和粉尘的识别，关键在于生产物料的确认和工艺过程的调查分析
【判断题】
经过加压的丙烷气体在高压泄漏时不会产生静电火花
【判断题】
若甲烷化催化剂要按计划更换在打开反应器前必须进行催化剂的氧化处理，因为高合量的镍可使催化剂自燃，引起聚合物燃烧
【判断题】
只要各项工艺参数低于联锁值,就可以保证乙筛装置的安全运行
【判断题】
生产经营单位应当制定本单位的应急预案难练计划根据本单位的事故预防重点每半年至少组织一次综合应急预案演练或者专项应急预案演练
【判断题】
卸出催化剂时，工作人员应带好安全防护用品接好消防水带，做好安全防护准备工作以防催化剂卸出时自燃
【判断题】
专项应急预案中危险源监控就是明确本单位
【判断题】
当冷区着火时应注意该区物料的介质的温度等级不能一概用水扑救
【判断题】
含硫的酸性气体是导致乙烯装置关键设备管式裂解炉露点陪蚀的主要原因
推荐试题
【单选题】
Which of the following statements is NOT true?____________ ___
A. Some adults can’t tell right from wrong.
B. Censorship is compared to the law because both of them perform good service to society as a whole.
C. Censors pay attention only to genuine works of art.
D. Censorship is necessary because many books, plays and films are far from being “works of art”.
【单选题】
What does the word “corrupt” in Para.4 mean?__________ ___
A. Make morally bad.
B. Hurt.
C. Injure.
D. Damage.
【单选题】
What would be the best title of this passage?_____________ ___
A. Permissive Parents and Responsible Parents.
B. Censorship and the Law.
C. Censors Value Artistic Merits .
D. Censorship Performs Good Service to Society.
【单选题】
Lie detectors are widely used in the United States because _____________. ___
A. they can help detect people’s emotional stress
B. they can help detect people's physiological changes
C. they can help find out whether a person is telling the truth or not
D. they can measure the subject’s electrical resistance
【单选题】
According to the passage, we know that Britain______________. ___
A. will adopt lie detectors widely
B. will adopt lie detectors on a smaller scale
C. adopt lie detectors
D. has not decided whether to adopt lie detectors or not
【单选题】
The tests themselves are by no means free from error..." (Line 1-2.Para.3) means ____________. ___
A. the tests definitely have no error
B. the tests sometimes make mistakes
C. the polygraphers do not make mistakes
D. the polygraphers can avoid error by using some techniques
【单选题】
Which of the following is true? ________________ ___
A. The tests are conducted by qualified polygraphers.
B. Innocent people may blush or stammer when questioned.
C. Guilty people can definitely be found out by answer questions
D. Guilty people may escape by refusing to answer questions.
【单选题】
What troubles lie detector researchers most is that _______________. ___
A. innocent people are convicted crimes
B. innocent people will learn to tell lies
C. lie detectors may cause industrial unrests
D. lie detectors are sometimes not dependable
【单选题】
In the passage the author's attitude towards "mixed-ability teaching" is _______. ___
A. critical
B. questioning
C. approving
D. objective
【单选题】
By "held back" (Line 1) the author means _____. ___
A. made to remain in the same classes
B. forced to study in the lower classes
C. drawn to their studies
D. prevented from advancing
【单选题】
The author argues that a teacher's chief concern should be the development of the student's _________. ___
A. personal qualities and social skills
B. total personality
C. learning ability and communicative skills
D. intellectual ability
【单选题】
Which of the following is NOT MENTIONED in the third paragraph? __________ ___
A. Group work gives pupils the opportunity to learn to work together with others.
B. Pupils also learn to develop their reasoning abilities.
C. Group work provides pupils with the opportunity to learn to be capable organizers.
D. Pupils also learn how to participate in teaching activities.
【单选题】
The author's purpose in writing this passage is to ______. ___
A. argue for teaching bright and not-so-bright pupils in the same class
B. recommend pair work and group work for classroom activities
C. offer advice on the proper use of the library
D. emphasize the importance of appropriate formal classroom teaching
【单选题】
According to the author, the deaths among youth are mainly caused by _____. ___
A. traffic accidents
B. smoking-related diseases
C. murder
D. all of these
【单选题】
Every day there are over_____high school students who will become regular smoker. ___
A. 75
B. 23
C. 30
D. 3000
【单选题】
By "dropout" the author means______. ___
A. students who failed the examination
B. students who left school
C. students who lost their way
D. students who were driven out of school
【单选题】
The reason for declining adolescent smoking is that ________. ___
A. NCI has taken effective measures
B. smoking is prevented among high school seniors
C. there are many smokers who have died of cancer
D. not stated
【单选题】
What is implied but not stated by the author is that ________. ___
A. smoking rates among youth have declined very little
B. there are now more female than male smokers among high school seniors
C. high smoking rates are due to the increase in wealth
D. smokers at high school are from low socio-economic backgrounds
【单选题】
According to the passage, which of the following is NOT a disadvantage of part time education? _______________ ___
A. It requires some break in one's career.
B. It tends to last too long for many people to complete a degree program.
C. It affects one's career.
D. It gives the student less time to share with the family.
【单选题】
Which of the following is NOT an advantage of distance learning? _________ ___
A. The student may choose his or her own pace.
B. The student may study at any time to his or her convenience.
C. They can pursue their chosen career while studying.
D. Their tutorial assistance comes through regular airmail, telephone, etc.
【单选题】
What benefit will distance learning program bring to a business? __________ ___
A. Recruitment of more talented people.
B. Good image of the business.
C. Better cooperation with universities.
D. Further training of employees and business growth.
【单选题】
Good distance learning program have the following characteristic EXCEPT______. ___
A. distance learning course is the same as students taking courses in campus
B. the degree should be same as on campus study
C. professor-student relationship is strictly one to one all through the course
D. includes subject evaluation tool
【单选题】
What benefit will distance learning bring to an employee of a business? ___________ ___
A. Professional growth.
B. Good relationship with the employer.
C. Good impression on the employer.
D. Higher salary.
【单选题】
In the first paragraph, what does "plastic money" (Line 6, Para.1) refer to? ______ ___
A. Dollars.
B. Online payment.
C. Credit cards.
D. Coins.
【单选题】
Which of the following is NOT true about credit cards? ____________ ___
A. Shopkeepers, among others, object to the use of credit cards because they add on the cost of the merchandise.
B. Credit card holders actually pay for their goods after the purchase has been completed.
C. The national company enjoys extensive growth because of the use of credit cards.
D. It has had the effect of increasing consumption.
【单选题】
What is the disadvantage of credit cards? _____________ ___
A. It may lead to the overgrowth of the national economy.
B. The delay in the payment of shopping goods may bring damage to shopkeepers' profits.
C. Some people may intentionally purchase goods that they cannot possibly afford.
D. Those who pay by cash at the purchase will have to pay for the cost added to the product as the interest charge of credit cards.
【单选题】
What is the main topic of the text? ________________ ___
A. Advantages and Disadvantages of Credit Cards.
B. Economic Growth Backed up by the Use of Credit Cards.
C. It can encourage great sums of consumption.
D. Credit Cards Make Life
E. asier.
【单选题】
The author's attitude towards credit card is.______________. ___
A. agreeable
B. neutral
C. humorous
D. oppositional
【单选题】
不含有割地内容的不平等条约是___。
A. 《南京条约》
B. 《北京条约》
C. 《马关条约》
D. 《辛丑条约》
【单选题】
在甲午战争后，严复翻译的《天演论》所宣传的重要思想是___。
A. “师夷长技以制夷”
B. “中学为体，西学为用”
C. “天下兴亡，匹夫有责”
D. “物竞天择，适者生存”
【单选题】
火烧圆明园发生在___期间。
A. 鸦片战争
B. 第二次鸦片战争
C. 甲午战争
D. 八国联军侵华战争
【单选题】
规定允许外国在中国办工厂的条约是___。
A. 《南京条约》
B. 《北京条约》
C. 《马关条约》
D. 《辛丑条约》
【单选题】
1895 年，日本强迫清政府签订___，割去台湾全岛及所有附属岛屿和澎湖列岛。
A. 《南京条约》
B. 《北京条约》
C. 《马关条约》
D. 《辛丑条约》
【单选题】
近代以来中国反侵略战争失败的最根本原因是___。
A. 帝国主义的强大
B. 社会制度的腐败
C. 经济技术的落后
D. 中国军队军事素质低下
【单选题】
鸦片战争以清政府的失败而告终。1842 年 8 月 29 日，清政府与英国签订了中国近代史上的第一个不平等条约是___。
A. 中英《虎门条约》
B. 中英《南京条约》
C. 中美《望厦条约》
D. 中法《黄埔条约》
【单选题】
在近代中国，规定中国向列强支付赔款最多的条约是___。
A. 《南京条约》
B. 《北京条约》
C. 《马关条约》
D. 《辛丑条约》
【单选题】
到___的订立为止，庞杂的不平等条约体系已宣告中国半殖民地社会的完全形成。
A. 《天津条约》
B. 《北京条约》
C. 《辛丑条约》
D. 《马关条约》
【单选题】
德国元帅瓦德西说：“无论欧、美、日本各国，皆无此脑力与兵力，可以统治此天下生灵四分之一，故瓜分一事，实为下策。”这表明___。
A. 帝国主义已灭亡中国
B. 帝国主义之间相互勾结
C. 帝国主义瓜分中国图谋的破产
D. 帝国主义之间的矛盾
【单选题】
帝国主义列强掀起瓜分中国的狂潮是在___。
A. 中日甲午战争爆发后
B. 第一次鸦片战争爆发后
C. 八国联军战争爆发后
D. 第二次鸦片战争爆发后
【单选题】
下面表述不正确的是___。
A. 中国人民的反侵略战争，激起了帝国主义列强的侵华野心。
B. 中国人民的反侵略战争，使我们的国家和民族历尽劫难、屡遭侵略而不亡。
C. 中国人民的反侵略战争表现出来的爱国主义精神，铸成了中华民族的民族魂。
D. 中国人民反侵略战争的失败，从反面教育了中国人民，极大地促进了中国人的思考、探 索和奋起，反侵略战争的过程，是中华民族逐步觉醒的过程。
