A、 B、 C、 D、E五家施工单位投标竞争一座排压8MPa的天然气加压站工程的承建合同。

发布时间：2020-05-20 13:44 │ 来源：www.tikuol.com

题型：问答题案例分析题

问题：

A、B、C、D、E五家施工单位投标竞争一座排压8MPa的天然气加压站工程的承建合同。B施工单位在投标截止时间前两天已送达了投标文件，在投标截止时间前1小时，递交了其法定代表人签字、单位盖章的标价变更文件。A施工单位在投标截止时间后10分钟才送达标书。按评标程序，具备相应资质的C施工单位中标。

该项目气源由D325×8埋地无缝钢管，从距离总站420m的天然气管网接驳，管网压力1.0MPa。C施工单位经过5个月的努力，完成了外输气压缩机的就位、解体清洗和调整；完成了电气自动化仪表工程和管道的连接、热处理、管托管架安装及管道系统的涂漆、保温，随后对管道系统组织试压。

管线与压缩机之间的隔离盲板采用耐油橡胶板。试压过程中橡胶板被水压击穿，外输气压缩机的蜗壳进水。C施工单位按质量事故处理程序，更换了盲板并立即组织人员解体压缩机，清理积水，避免了叶轮和蜗壳遭受浸蚀。由于及时调整了后续工作，未造成项目工期延误。消防设施检测单位对采用共用接地装置的消防控制室主机进行技术测试时，在柜体处实测接地电阻值为12Ω，在基础槽钢处实测接地电阻值为0.4Ω。由于测试时有不合格项，为此向C单位提出整改要求，项目部认真分析原因，并及时整改，顺利通过消防部门验收。

管道系统试压中有哪些不妥之处？

考点：机电工程(一建)机电工程综合练习机电工程综合练习题库

题型：问答题案例分析题

阅读下面短文，并做短文后面的题目，从四个选项上中，选出最佳答案。

         New rules and behaviour standards (行为规范) for middle school students came out in March. Middle
school is going to use a new way to decide who the top students are. The best students won't only have high
marks. They will also be kids who don't dye (染) their hair, smoke or drink. The following are some of the
new rules.
         Tell the truth. Have you ever copied someone else's work on an exam? Don't do it again! That's not
something an honest student should do. If you have played computer games for two hours in your room, don't
tell your parents you have done homework.
         Do more at school. Good students love animals and care for other people. April is Bird-Loving Month in
our country. Is your school doing anything to celebrate? You should join! That way, you can learn more about
animals and how to protect them. When more people work together, it makes it more fun for everyone. Have
you ever quarreled with your teammates when your basketball team lost? Only working together can make your
team stronger. Be friendly to the people you are with. Try to think of others, not only yourself.
         Be open to new ideas. Have you ever thought that people could live on the moon? Perhaps you'll discover
Earth II someday. Don't look down on new ideas. Everyone's ideas are important. You should welcome them,
because new ideas make life better for everyone.
         Protect yourself. Has someone ever taken money from one of your classmates? Don't let it happen to
you. If you have to go home late, you should let your parents know.
         Use the Internet carefully. The Internet can be very useful for your studies. But some things on the
Internet aren't for kids, so try to look at Web pages that are good for you. You can use the Web for fun or
homework. Can't you find any good Web sites for children? Here are some:
         http ://kids. eastday. com
         http ://www. chinakids. net. com
         http: //www. cycnet. com

1. The school new rules will help kids by telling them ___.

A. how they can study well
B. what they should do at school
C. what is right and what is wrong
D. how they can protect themselves

2. According to the passage, which of the following is not true?

A. Take care of yourself when you are out.
B. Tell the truth, even when you are wrong.
C. Keep some animals to protect them.
D. Use the Internet, but keep away from bad things.

3. The main idea of the fourth paragraph is about ___.

A. making the team stronger
B. working together with others
C. being a good friend to others
D. getting on well with others

4. Good Web sites for children can ___.

A. be a waste of time
B. help them with their studies
C. do homework for them
D. make life easier

5. The passage tells us how to ___.

A. be top students
B. do more at school
C. care for others
D. use the Internet

查看答案

题型：问答题案例分析题

除______以外，生物体都是由______构成的．______是生物体结构和功能的基本单位．

查看答案

题型：问答题案例分析题

下列选项中哪些表现了宪法的最高效力？

A．宪法是普通法律制定的基础和依据

B．宪法是一国之内所有组织和个人的最高行为准则

C．宪法是一国政治力量对比关系的全面、集中表现

D．在制定和修改的程序上，宪法较之比普通法律更为严格

查看答案

题型：问答题案例分析题

There is no question that computer applications such as (71) , electronic mail, and (72) publishing have changed the way people work. These computer applications have enhanced users capacity for communication and have improved their productivity. The success of these applications has prompted both vendors and researchers to continue to seek new ways to further advance the information technology revolution. Enter the latest innovation: networked (73) systems. They convey information in multiple (74) : text, graphics, video, audio, (75) , computer simulations, and so forth. Advocates of these systems argue that they are the next logical step in human communication; however, modifying our current networks to accommodate the variety of media will present significant technical difficulties.

A．on-desk

B．tabletop

C．desktop

D．table-board

查看答案

题型：问答题案例分析题

VBA的运行机制是【7】。

查看答案

更多题库