按所处的地位分,从热源至热力站的供回水管网和从热力站到用户的供回水管网分别是()。A

题型:多项选择题

问题:

按所处的地位分,从热源至热力站的供回水管网和从热力站到用户的供回水管网分别是()。

A.一级管网

B.二级管网

C.供水管网

D.回水管网

E.蒸汽管网

考点:市政公用工程1K415020城市供热管道工程施工1K415020城市供热管道工程施工题库
题型:多项选择题

阅读理解。

Peter:  Look, it's Tom's family photo.

Jim:   Is this girl his sister?

Peter:  Sorry, I don't know. Tom, is this your sister.

Tom:  Yes, it's my sister. Her name is Linda.

Jim:   How about this woman? Is she your mother?

Tom:  No. She is my aunt. She is a policewoman. Her name is Carol. These

are my parents. My father Frank is a doctor and my mother Sarah is a teacher.

Peter:  Who is this baby?

Tom:  Guess! Yes, it's me! I'm only 2 years old in the photo.

Jim:   Are these two old people your grandparents?

Tom:  Yes, they are. They're professors(教授).

1. Carol is Tom's __________.

A. mother

B. aunt

C. sister

2. Linda is ___________.

A. 2 years old

B. 7 years old.

C. I don't know

3. Sarah is a __________.

A. doctor

B. policewoman

C. teacher

4. Frank has ________ children.

A. one

B. two

C. three

5. Tom's grandfather is a ______________.

A. professor

B. teacher

C. doctor

题型:多项选择题

防腐涂层换热器停工吹扫时,禁止用()直接吹扫。

A、蒸汽

B、压缩空气

C、氮气

D、水

题型:多项选择题

按年金给付开始日期划分,年金保险可分为( )。

A.即期年金与延期年金
B.趸交年金与期交年金
C.定额年金与变额年金
D.个人年金与联合年金

题型:多项选择题

凋亡是().

A.活体内单个或小团细胞的死亡 

B.细胞或间质内出现半透明、均质、红染无结构物质 

C.结核杆菌引起的坏死 

D.坏死组织发生酶性水解 

E.除脂肪细胞外,其他细胞出现脂滴

题型:多项选择题

某公司中标承建中压A燃气管线工程,管道直径DN30mm,长26km,合同价3 600万元,管道沟槽开挖过程中,遇到地质勘察时未探明的废弃砖沟,经设计人验收地基,并提出处理意见后,施工项目部按设计图纸和要求施工,及时清除了砖沟,进行换填级配砂石处理。

沟底遇有废弃构筑物、硬石、木头、垃圾等杂物时必须清除,并应铺一层厚度不小于( )的砂土或素土,整平压实至设计标高。

A.0.25m

B.0.20m

C.0.15m

D.0.10m

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