天然气管道减阻涂料由哪几种物质组成?

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问题:

天然气管道减阻涂料由哪几种物质组成?

考点:输气工考试输气工技师输气工技师题库
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阅读理解。

     Long, long ago there lived an old man. He had a very big orange tree in his garden. On the tree there

were many fine oranges.

     One day the old man found one of the oranges was bigger than the others. It was as big as a watermelon.

So he took the big orange to the king. The king was very happy and gave the old man a lot of money for it.

     When a rich man heard of this, he said to himself, "It is only an orange. Why did the king give him so

much money? If I take my gold cup to the king, he will give me much more money for it." 

     The next day when the king got the gold cup, he said to the rich man, "What a beautiful cup! I'll give you

something for it. Please take the great orange."

根据短文内容回答下列问题.

1. What did the old man have in his garden?

    ____________________________________.

2. What did the old man find one day?

    ____________________________________.

3. Who did the old man give the big orange to?

    ____________________________________.

4. What did a rich man think when he heard of the story?

    ____________________________________.

5. Was the rich man very happy at last?

    ____________________________________.

题型:问答题 简答题

高锰酸钾中锰元素的化合价是(  )

A.+7

B.+4

C.+2

D.+6

题型:问答题 简答题

关于正常菌群,描述不正确的是()。

A.当人体免疫功能正常时,正常菌群对宿主无害

B.肠道内的双歧杆菌产生大量的碱性物质,能拮抗肠道细菌感染

C.条件致病菌也属于正常菌群

D.正常菌群有生物拮抗、免疫、营养等作用

E.正常菌群寄居于口腔、鼻咽腔、肠道、泌尿生殖道等腔道黏膜

题型:问答题 简答题

混凝土构件挠度检验,应量测构件()。

A.跨中位移

B.跨中位移和支座沉陷

C.构件自重产生挠度和跨中挠度

题型:问答题 简答题

省委十届五次全会指出,要健全党的建设制度改革推进机制和党建工作保障机制,深入开展党建工作三级联述联评联考,认真落实()党委书记党建工作专题述职制度。

A.市县

B.省市县

C.市县乡

D.县乡

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