热水系统疏水器的作用是()。

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问题:

热水系统疏水器的作用是()。

考点:监理知识竞赛给排水知识给排水知识题库
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根据短文内容,选择最佳选项.

    I suppose when you grow up in one place, you have friends whom you've known since childhood.

But as a child who moved a lot, my oldest friendships are with my cousins.

    On our return from Guam, my parents, sisters and I walked off the plane in Alexandria. All my cousins

were there to meet us.

    I was excited to see them again. The last time I'd seen Don, Sherri and David was two years before.

That summer we'd caught fireflies(萤火虫) and watched Don and his friends play a game. Some boys

acted like a bull(公牛) with a rope(绳子). His friend held the rope and Don rode on it. When Don fell

off, he got up and tried again.

    Just like riding that bull, Don put his heart into everything he did. As a young man he was told he got

cancer(癌症). But he fought it and never gave up. Like what he did that summer, he held tight(紧紧地),

falling off a few times and trying again. I was excited and proud of my cousin for planning and going after

his dream. I wished his ride would have lasted longer.

1. The writer and his family returned to Alexandria      .

A. by boat              

B. by ship

C. by air                

D. by train

2. The writer and his cousins       in the summer two years ago.

A. became good friends

B. moved to Guam

C. rode a bull

D. caught fireflies

3. What does the underlined word "held" mean in the passage?

A. 抓住    

B. 容纳    

C. 扣留    

D. 举办

4. When did Don know he got cancer?

A. When he was born.

B. When he was a young man.

C. Two years ago.

D. Last summer.

5. From the last paragraph, we know Don is a man who        .

A. is very shy            

B. never gives up

C. has a bull              

D. is very foolish

题型:填空题

在工程寿命周期成本分析中,进行系统设置费与该系统开发、设置所用全部时间之间的权衡分析时采用的主要方法是( )。

A.计划评审技术
B.价值分析法
C.赢得值分析法
D.因素分析法

题型:填空题

对于皮肤癌常见病因学描述不正确的是()。

A.日光

B.过量放射线照射

C.化学物质

D.物理性因素

E.饮食因素

题型:填空题

小儿脑瘫,评价认知能力的量表是()。

A.感觉统合核对表

B.儿童残疾评价表(PEDI)

C.Peabody运动发育量表

D.粗大运动功能测量(GMFM)

E.洛文斯顿作业疗法认知评定量表

题型:填空题

电焊机遥测期限的要求是什么?

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