汽油回流泵出口压力不正常,你如何判断?

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问题:

汽油回流泵出口压力不正常,你如何判断?

考点:乙烯装置操作工乙烯裂解知识乙烯裂解知识题库
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某列入城建档案馆接收范围的工程项目,项目档案验收组在检查该建设工程档案资料时。发现施工图及说明不符合档案规范要求,遂提出了整改意见,要求在项目竣工验收前对存在的问题进行整改,整改后,复查通过。建设单位于2008年1月1日接到施工单位提交的竣工验收报告,2月1日竣工验收顺利通过。

根据《建设工程质量管理条例》规定,建设单位应当严格按照国家有关档案管理的规定。及时收集、整理建设项目各环节的文件资料,建立、健全建设项目档案,并在 ( ),及时向建设行政主管部门或者其他有关部门移交建设项目档案。

A.建设工程施工开始前

B.建设工程竣工前后

C.建设工程竣工验收前

D.建设工程竣工验收后

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If you want to get the most out of the study of a language, you must also read for pleasure: novels, plays, travel books, and so on. And in reading books of this kind the important thing is to get on with the reading; to try to catch what the writer is going to tell you in the book as a whole. This is impossible if you stop and think over the meaning of every single word which happens to be unfamiliar. You can not enjoy a story if you stop a few times on every page in order to look up words in the dictionary. You may even prevent(妨碍) yourself from understanding the story as a whole by doing this.

When you are reading books of this kind, therefore, you will usually have to depend mainly on the context (上下文) to help you. If you meet an unfamiliar word, do not let it take too much of your attention from the main idea of the story. In all probability you will meet the same word again a few pages later on in a slightly different context, and each time you see it that your understanding of it will become more exact.

小题1:To read for pleasure means _____________.

A.to take pleasure in reading

B.to be satisfied in reading book

C.to read such books as novels, plays, travel books, etc

D.to go on with reading pleasantly小题2:The phrase “to get on with reading” in the passage has the same meaning as “     ”.

A.to try to grasp the meaning of every sentence in the book

B.to try to catch the meaning of every word in the book

C.to try to understand all the writer is going to tell you

D.to try to understand the main idea of the book小题3:The best title for this passage is “___________”.

A.Read for Pleasure

B.Get on with the Books

C.Reading Skills

D.The Importance of Reading

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3.25立方分米=______立方厘米.

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从1922 年初到1 923 年2 月,相继爆发了香港海员大罢工、安源路矿工人大罢工、开滦五矿工人大罢工和京汉铁路工人大罢工,形成了                    

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(8分)将下列性质的番号,填入各小题后面对应的括号中:

A.脱水性;

B.强酸性;

C.二元酸;

D.氧化性;(E)吸水性(1)将胆矾放入装有浓H2SO4的干燥器中,过一段时间胆矾变白色。    (    )

(2)NaOH与H2SO4反应,可生成Na2SO4和NaHSO4这两种盐。       (    )

(3)在烧杯中放入蔗糖,滴入浓H2SO4变黑,并产生大量气体。        (    )

(4)在稀HNO3中放入铝片就产生NO。                             (    )

(5)在稀H2SO4中放入铝片就产生H2。                             (    )

(6)在冷浓HNO3中放入铝片没明显现象。                         (    )

(7)浓H2SO4敞口久置会增重。                                  (    )

(8)用稀硫酸清洗金属表面的氧化物                              (    )

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