【单选题】
Technology facilitates _______. ___
A. sharing information
B. storing and sending information
C. providing people with easy access to more information
D. all of the above
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【单选题】
We can learn from the last paragraph that _______. ___
A. it is necessary to obtain as much
B. people should make the best use of the information
C. we should realize the importance of accumulating information
D. it is of vital importance to acquire needed information efficiently
【单选题】
The author thinks that people are _________. ___
A. satisfied with their appearance
B. concerned about appearance in old age
C. far from neglecting what is in fashion
D. reluctant to follow the trends in fashion
【单选题】
Fashion magazines and TV advertisements seem to link fashion to _________. ___
A. confidence in life
B. personal dress
C. individual hair style
D. personal future
【单选题】
Causes of fashions are _________. ___
A. uniform
B. varied
C. unknown
D. inexplicable
【单选题】
Present-day society is much freer and easier because it emphasizes _________. ___
A. uniformity
B. formality
C. informality
D. individuality
【单选题】
Which is the main idea of the last paragraph? ______________ ___
A. Care about appearance in formal situations.
B. Fashion in formal and informal situations.
C. Ignoring appearance in informal situations.
D. Ignoring appearance in all situations.
【单选题】
Permissive parents would ________. ___
A. let their children read any books they like to
B. not let their children see any films they like to
C. not let their children read any books without first checking their contents
D. let their children see the films with their first checking
【单选题】
The fact that parents check the contents of the book or the film for their children to read or see shows __________. ___
A. the necessity of censorship
B. that many books and films are bad
C. that children need their parents to help them understand more
D. that the parents are permissive
【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》
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【多选题】
机械维修人员对关键机组的特护应开展设备点检,采用“看、听、摸、嗅、测”等常规检查方法,检查设备及配管的___等变化情况。
【多选题】
裂解炉对流段的主要作用,是___。
A. 将原料预热、汽化并过热至裂解温度
B. 回收烟气中的废热,提高裂解炉热效率
C. 使原料有足够时间,充分裂解
D. 增加一次反应,减少二次反应
【多选题】
进设备作业前须对受限空间进行气体采样分析,下列分析结果中合格的是:___
A. 可燃气体浓度0.2%
B. 氧含量19.5%
C. H2S浓度10mg/m3
D. 一氧化碳浓度10mg/m3
【多选题】
回收急冷水中低位热量的途径有___。
A. 裂解部分原料预热
B. 分离单元丙烯精馏塔热源
C. 压缩单元裂解气过热
D. 冷却外送裂解燃料油
【多选题】
超高压蒸汽发生系统管线化学清洗过程中,要分别进行酸洗和碱洗,其中不是碱洗的目的是___。
A. 除去泥砂
B. 除去管壁上附着的铁锈
C. 除去防锈油(脂)
D. 除去焊渣等机械杂质
【多选题】
下列各项中属于急冷区日常分析项目的有___。
A. 工艺水pH值
B. 急冷水pH值
C. 稀释蒸汽汽包排污pH值
D. 稀释蒸汽凝液pH值
【多选题】
正常生产时,裂解单元废渣的来源有___。
A. 烧焦罐焦粒
B. 急冷油循环泵入口过滤器焦粒
C. 急冷油循环泵出口过滤器焦粒
D. (减粘后)裂解燃料油采出泵入口过滤器焦粒
【多选题】
减粘塔依靠___作用,将急冷油中最重的组分脱离出来。
A. 汽提
B. 重力沉降
C. 离心沉降
D. 冷凝
【多选题】
安全阀按照开启度分类,可分为___。
A. 全启式
B. 微启式
C. 中启式
D. 敞开式
【多选题】
关于裂解炉的维护内容,下列说法正确的是___。
A. 烟气横跨温度不得超过设计指标的0℃以上
B. 炉出口压力不得超过设计值
C. 裂解炉炉膛应保持在一定的负压下运行,不允许正压操作
D. 烟气含氧量应维持在2~3%之间,并保证烟囱不冒黑烟
【多选题】
蒸汽透平润滑油系统在启动透平前,正确的状态有___。
A. 润滑油辅助油泵已经启动,润滑油压力正常
B. 润滑油冷却器已经正常投用
C. 两台润滑油过滤器一台已经正常投用,另一台已经充液备用
D. 润滑油油箱满液位
【多选题】
设置汽油分馏塔中段回流的目的有___。
A. 提高汽油分馏塔的热负荷
B. 降低汽油分馏塔的热负荷
C. 提高汽油分馏塔的处理能力
D. 降低汽油分馏塔的处理能力
【多选题】
当裂解炉烧嘴出现脱火现象时,正确的调整手段有___。
A. 适当加大燃料气量
B. 关小烧嘴风门
C. 适当降低燃料气压力
D. 开大烧嘴风门
【多选题】
可以有效延长裂解炉运行周期的方法包括___。
A. 提高稀释比
B. 降低COT
C. 降低进料量
D. 调整燃烧模型
【多选题】
联锁系统的输入信号可以是___。
A. 压力信号
B. 温度信号
C. 液位信号
D. 流量信号
【多选题】
安全阀按其工作原理可分为___。
A. 弹簧式
B. 重锤式
C. 杠杆式
D. 导向式
【多选题】
下列各项中,对结焦程度有影响的是___。
A. 稀释蒸汽流量
B. 原料种类
C. 炉出口温度
D. 炉管材质
【多选题】
下列各项中,可能会造成裂解炉排烟温度高的是___。
A. 对流段吹灰
B. 辐射段窥视孔漏风
C. 汽包排污过大
D. 烧嘴燃烧情况不佳
【多选题】
下列各项中,有利于降低急冷油粘度的调整方法是___。
A. 减小侧线采出量
B. 适当降低急冷器出口温度
C. 适当降低DS压力
D. 外接调质油
【多选题】
裂解炉辐射段炉管断裂时的紧急处理应该包括___。
A. 切断裂解炉原料供应
B. 停急冷油
C. 切大阀
D. 切断裂解炉燃料供应
【多选题】
因循环水水质不稳定而引起的常见故障有___。
A. 结垢故障
B. 腐蚀故障
C. 生物故障
D. 粘泥故障
【多选题】
我们现在常用的仪表精度等级为___。
A. 0.5;
B. 1;
C. 1.5;
D. 2.5
【多选题】
BFW水质不良引起的危害有___。
A. 设备结垢
B. 炉管结垢
C. 设备结垢
D. 蒸汽透平结垢
【多选题】
工艺水过滤器的工艺目的有___。
A. 过滤固体颗粒
B. 过滤溶解在水中的酸性组分
C. 分离水中的汽油等重质烃类
D. 拦截水中的钙镁等金属离子
【多选题】
BFW水质不良引起的危害有___。
A. 设备结垢
B. 炉管结垢
C. 设备结垢
D. 蒸汽透平结垢
【多选题】
工艺水过滤器的工艺目的有___。
A. 过滤固体颗粒
B. 过滤溶解在水中的酸性组分
C. 分离水中的汽油等重质烃类
D. 拦截水中的钙镁等金属离子
【多选题】
“三查四定”中的“四定”是指对检查出来的问题___。
A. 定任务
B. 定负责人
C. 定措施
D. 定时间、期限解决
【多选题】
下列分析项目中,通常采用自动在线分析仪表分析的有___。
A. 烟气氧含量
B. 烧焦气CO含量
C. 超高压蒸汽汽包连续排污磷酸根含量
D. 裂解气各组分含量
【多选题】
系统进行氮气置换时,要求___。
A. 系统内各调节阀打开
B. 系统内各调节阀关闭
C. 系统内各调节阀旁路打开
D. 系统内各调节阀旁路关闭
【多选题】
离心泵启动后,应注意___。
A. 电流表电流
B. 泵的转向
C. 出口压力
D. 泵体泄漏情况
【多选题】
安全阀的开启压力是根据___确定的。
A. 正常操作压力
B. 介质的物态
C. 安全阀的最大排放量
D. 安全阀的开启度
【多选题】
关于塔类设备的日常维护,下列说法正确的是___。
A. 塔器操作中允许超温但不能超压
B. 定时检查受压元件
C. 定时检查人孔、阀门和法兰等密封点的泄漏
D. 定时检查安全附件,应灵活可靠
【多选题】
下列各项中,对裂解炉废热锅炉发生严重内漏后,急冷系统主要工艺参数的变化趋势叙述正确的是___。
A. 汽油分馏塔顶温上升,釜温下降
B. 汽油分馏塔顶温下降,釜温上升
C. 急冷水塔塔顶温、釜温都上升
D. 汽油分急冷水塔顶温、釜温都下降
【多选题】
发现工艺水带油后,正确的处理方法有___。
A. 提高急冷水塔塔釜温度
B. 控制急冷水沉降槽中的油相液位,防止油相液位偏高
C. 将乳化的急冷水处理正常
D. 提高汽油分馏塔顶温
【多选题】
裂解炉发生燃料气低压联锁停车后,正确的处理方法包括___。
A. 关闭原料调节阀
B. 关闭各烧嘴考克和阀门
C. 调整烧嘴风门和烟道挡板,控制炉膛进风量
D. 降低DS量
【多选题】
裂解炉风机轴承温度偏高,可选择公用站所提供的___为其降温。
【多选题】
下列调节措施中能够降低裂解汽油干点的有___。
A. 增加侧线裂解柴油采出量
B. 减少侧线裂解柴油采出量
C. 增加塔顶汽油回流量
D. 减少塔顶汽油回流量
【多选题】
下列措施中,可以降低裂解炉烟气温度的有___。
A. 打开对流段窥视孔
B. 加大汽包排污量
C. 加大BFW的流量
D. 开大底部烧嘴风门
【多选题】
当裂解炉烧嘴出现回火现象时,正确的调整手段有___。
A. 适当加大燃料气量
B. 关小烧嘴风门
C. 适当降低燃料气量
D. 开大烧嘴风门
【多选题】
为了防止急冷水系统腐蚀,常加入的药剂有___。
A. NaOH
B. 消泡剂
C. 中和胺
D. 缓蚀剂