()时,可燃油油浸变压器室的门应为甲级防火门。 A.变压器室位于可燃粉尘,可燃纤维场

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问题:

()时,可燃油油浸变压器室的门应为甲级防火门。

A.变压器室位于可燃粉尘,可燃纤维场所

B.变压器室位于附近有粮、棉及其他易燃物的场所

C.变压器室位于车间

D.变压器室位于仓库附近

考点:电气工程师(发输变电)安全、环境保护与节能、消防安全、环境保护与节能、消防题库
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论述托盘的概念和特点。

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阅读理解

     Many people have tried to simplify (简化) the spelling of English words.Unlike other languages,English sometimes spells the same sounds in very different ways.For example,there is "light" but "white","loan" but "phone",and there are at least seven different ways of pronouncing "ough":"though","through","bough","

cough","enough","ought" and "thorough".

     The American President Theodore Roosevelt almost succeeded in simplifying English spelling.In 1906,Andrew Carnegie started the Simplified Spelling Board.He was one of the richest men in the United States of America.The board's plan was to make the spelling of words nearer to the way they sound.For

example,the word "though" would be spelt "tho" and "through" would become "thru".Other people on the board were Melvil Dewey,the head of the New York libraries,and Professor Brander Matthews of

Columbia University.They explained their idea to President Roosevelt,who thought that it was indeed

logical.He immediately asked the government printer to use simplified spelling in all government letters.

But people didn't like the change,even if it made life easier.So the new simpler spelling was not popular.

More importantly,when the American politicians (政客) discussed the plan,they did not like it either.

Because Roosevelt did not want to have any problems with the politicians,he changed his mind and told the printer to go back to the old way of spelling.

     Since then no one in any government has dared to simplify English spelling.However,people do simplify some words,mainly in advertisements.For example,we often see "tonite" instead of "tonight" and "thru"

instead of "through".

1. Many people have tried to simplify English spelling because________.

A. English words are too long to remember

B. there are many mistakes in English words

C. lots of words are spelt in many different ways

D. sometimes the same sounds have different spellings

2. Who is NOT a member of the Simplified Spelling Board?

A. Andrew Carnegie.  

B. Melvil Dewey.

C. Theodore Roosevelt.  

D. Brander Matthews.

3. What was Theodore Roosevelt's attitude towards simplified spelling?

A. Worried.  

B. Supportive.  

C. Uncertain.  

D. Doubtful.

4. According to the passage,simplified spelling________.

A. was welcomed by the US politicians

B. changed the way the words sound

C. has been used widely for over a century

D. was first used in US government letters

5. Roosevelt's plan to simplify English spelling________.

A. failed in the end  

B. proved quite successful

C. won wide support  

D. influenced English greatly

题型:多项选择题

维生素C的结构简式,有关它的叙述错误的是(  )

A.是一个环状的酯类化合物

B.易起加成及氧化反应

C.可以溶于水

D.在碱性溶液中能稳定地存在

题型:多项选择题

急性肾小球肾炎的临床表现是()。

A.大量持久的蛋白尿、水肿、高脂血症及低蛋白血症,可合并肾功能不全

B.发热(38℃以上)、肾区叩痛、压痛或尿中有白细胞管型

C.不同原因引起肾缺血或中毒,肾小管细胞发生坏死或功能障碍

D.起病急,有感染史,发病后少尿、蛋白尿、血尿、水肿

E.原发或继发于其他疾病,以弥漫性或局灶性炎症改变为主,常有蛋白尿、管型尿

题型:多项选择题

委托人要授权一位熟悉建设工程情况,能迅速做出决定的常驻代表,负责与监理人联系,更换此人要( )。

A.提前通知承包人

B.提前通知监理人

C.经承包人同意

D.经监理人同意

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