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8.Lake Superior, Huron, Erie, and Ontario are shared by the United States and Canada, and from part of the _________between the two countries.
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9.The police are investigating the three men allegedly _________organizing and carrying out the bank robbery.
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10.I do not doubt in the least that inflation leads to _________decline.
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11.A blizzard _______________great drifts of snow across the lake.
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12.Tim says _________everybody will be affected by the tax increase, but I’m sure he’s exaggerating.
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1.China’s economic success over the past three _________has raised the living standards of hundreds of millions of Chinese citizens.
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2.Citibank picked the chief executive of Etang.com as its first Chinese customer Thursday to open an account at its new branch in the _______Pease Hotel along Shanghai’s fabled waterfront.
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3.The United States last Wednesday _________tariffs关税 of up to 30 percent on a range of foreign steel imports to help protect its domestic国内的industry.
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4.Although he was raised as a Christian, he’s not really very _________.
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5.You can distinguish between frogs ands toads蟾蜍 in the following way: frogs have _________bodies, long limbs, and a smooth skin, and toads have stouter bodies, short limbs, and dry skin.
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6.From the airplane window I could see a _________of city streets.
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7.Aunt Pat smiled at her little niece and _________her to eat.
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8.Dr. Rich Hamilton is planning his own World Wide Web _________on the Internet to provide assistance to anyone who asks for medical help.
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9.It is difficult to estimate the number of people doing part-time jobs _________
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10.The president _________his foreign minister, Mr. Burns, to act as representative to the international conference to be held in Tokyo next month.
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11.Advances in telecommunications have meant that it is just as easy to work from a computer _________at home as it is from a town center office.
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12.Until the new gym is built, you have no option but _________existing buildings which may or may not suit your immediate目前的requirements.
【填空题】
1.According to some scientists, global warming _________the survival of the whole human race.
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2.The number of visitors from parts of Scotland not including the Edinburgh area was, in fact, relatively small19%, and exceeded the number of overseas visitors16%_________.
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3.The early Spaniards established a chain of mission _________the local population along the San Antonio River.
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4.It was common practice then that when the store owners wanted to go on vacation they simply _________
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5.As they didn’t have relatives or friends there they often _________around nearby malls when they got bored.
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6.To make a birthday card, you can simply cut out some funny or pretty pictures from magazines, _________them _________a piece of card and then write your message inside.
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7.She picked up the receiver and, _________ asking the caller to hold on, went off to tell Jack that he was wanted on the phone.
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8.To relax himself for a little while, he rose from the computer desk, walked across the room towards the window and stretched both arms upwards and _________.
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9.The new product has a pair of small loudspeakers fitted inside, which you can easily _________ your computer’s sound card.
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10.Music in fact is a _________language of a non-verbal nature which is rich in expression.
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11.This _________is designed to show at a glance how many rooms have been rented out and how many are still available.
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12._________ glorious sunshine, the boundless stretch of corn fields looked an impressive sight.
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1.The cook put the meat on a plate, _________it with salt and pepper, wrapped up the plate in aluminum foil铝箔 and then placed it in the oven to roast.
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2.Every waking moment we talk to ourselves about the things we experience. Our self-talk, the thought we communicate to ourselves, _________control the way we feel and act.
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3.John made everyone laugh when he got the words _________and referred to himself as “my husband’s wife”.
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4.You can’t live a perfect day without doing something for someone who will perhaps never be able to _________you.
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5.Because the Earth is a sphere, sailors _________only can view other ships to a distance of about 13 miles before those ships seem to disappear into the horizon.
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6.Johnson dismissed _________ideas lightly as no good on several occasions.
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7.One tends to believe whatever one repeats to oneself sufficiently often, whether the _________be true or false.
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8.Susan told me numerous times how her sister _________children.
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9.I don’t know what my roommate is up to because he does everything _______________, either when I am away or when I am asleep.
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10.For economic reasons, shipbuilders have designed vessels___ that can be loaded and _________in a minimum amount of time with minimum labor.
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11.Laugh, and the world laughs with you; _________, and you weep alone.
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12.A national debate is now _________about the manner in which we as a society should protect our natural resources.
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【填空题】
The boss spoke very ____(high) of her ______(able).
【填空题】
The new machine is ________(automatic) controlled.
【填空题】
___________(vocation) courses are often given more respect and funding than arts or philosophy.
【填空题】
All the transitions have been ______(charge) to your account.
【填空题】
The students attend the __________(apprentice) after school and during summer programs.
【填空题】
Read and write data in _____(block) of 1024 bytes.
【填空题】
The noise upset the entire ______(neighbor).
【填空题】
I find it _____(amaze) that you are such a wonderful swimmer.
【单选题】
急冷水乳化的原因大多是由于PH值___而引起的。
【单选题】
裂解炉烟道气氧含量一般控制在___。
A. 5－6％
B. 1－2.5％
C. 1－2％.
【单选题】
汽油分馏塔温度过高，将导致裂解汽油干点___。
【单选题】
汽油分馏塔设计中段回流的目的是___。
A. 取热
B. 提高分馏效果
C. 提高塔底温度
【单选题】
下列灭火器中，不适用于电器着火的是___。
A. 泡沫灭火器
B. 干粉灭火器
C. 1211灭火器
【单选题】
裂解炉汽包连续排污的目的是___。
A. 正常控制汽包的液位
B. 事故状态保证汽包液位
C. 防止汽包液位过高
D. 防止杂质在汽包内积累.
【单选题】
裂解炉的停留时间是指___。
A. 原料进对流段至出急冷器的时间
B. 原料进辐射段至出辐射段时间
C. 原料进对流段至出辐射段的时间 .
【单选题】
按压力容器的设计压力，压力在___的为中压容器。
A. 1．6Mpa≤P＜10Mpa
B. 10Mpa≤P＜100Mpa
C. P≥100Mpa
【单选题】
生产过程中有人触电，首先应___
A. 马上报告领导或有关部门
B. 尽快使触电者脱离电源 Ｃ．立即通知医院
【单选题】
炉膛负压是指___处的负压。
A. 拱顶附近
B. 底部烧嘴附近
C. 侧壁烧嘴附近
D. 引风机入口附近
【单选题】
粘度：___。
A. 基本与压力无关
B. 基本与温度无关
C. 气体的粘度随着温度的升高而减少
D. 液体的粘度随着温度的降低而减少
【单选题】
急冷水PH波动与___无关。
A. 胺泵不上量
B. 裂解原料
C. 弱碱/工艺水换热器内漏
D. 急冷水塔釜温
【单选题】
下列碳原子数同的烃在同样条件下裂解时，___的乙烯收率最高。
A. 烯烃
B. 正构烷烃
C. 异构烷烃
D. 环烷烃 .
【单选题】
炉出口压力是指___处的压力。
A. 辐射段出口
B. 废热锅炉出口
C. 急冷器出口 .
【单选题】
___表示用重铬酸钾测定的化学需氧量。
A.
B. OD B.BOD
C. BCD
D. COD .
【单选题】
对内部介质是有毒、易燃或污染环境的容器应选用___安全阀。
【单选题】
BMCI值是一个___指标。
A. 原料芳烃性
B. 原料比重指数
C. 原料特性因数
【单选题】
一般情况下，当裂解炉炉管渗碳大于___时，应考虑更换炉管。
A. 60％
B. 70％
C. 80％
D. 40％
【单选题】
下列哪种流量计不属于差压式流量计？___
A. 孔板流量计
B. 喷嘴流量计
C. 文丘时流量计
D. 转子流量计
【单选题】
当炉水温度急剧上升，出现严重汽化时，应___。
【单选题】
裂解炉辐射段炉管所用的HP－40材质为___。
A. 25Cr-35Ni
B. 20Cr-32Ni
C. 25Cr-20Ni
D. 25Cr-40Ni
【单选题】
不适宜做调节流体流量及输送含颗粒物料的阀门是___。
【单选题】
一般情况下，当裂解炉炉管渗碳大于___时，应考虑更换炉管。
A. 60％
B. 70％
C. 80％
D. 40％
【单选题】
下列不适合做裂解原油的是___。
A. 石脑油
B. 减压轻柴油
C. 常压轻柴油
D. 裂解汽油
【单选题】
在列管式换热器中，最常用的流体流向是___。
【单选题】
以下哪种泵启泵时出口阀可关死___。
A. 离心泵
B. 往复泵
C. 计量泵
D. 齿轮泵
