钢铁企业设置煤气柜的主要作用是什么?

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问题:

钢铁企业设置煤气柜的主要作用是什么?

考点:煤气发生炉工考试煤气发生炉工考试题库
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应用抗菌药物治疗的指征为()

A.患者诊断为链球菌感染肺炎

B.患者诊断为麻疹感染

C.清洁-污染手术

D.患者血常规检查一切正常,但有腹泻症状

E.患者诊断为肺结核

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阅读理解。

     It may help you to know that there is no such thing as a perfect speech. At some point in every speech,

every speaker says something that is not understood exactly as he has planned. Fortunately, the moments are

usually not obvious to the listeners. Why? Because the listeners do not know what the speaker plans to say.

They hear only what the speaker does say. If you lose your place for a moment, wrongly change the order

of a couple of sentences, or forget to pause at a certain point, no one will be any the wiser. When such

moments occur, don't worry about them, just continue as if nothing happened.

     Even if you do make an obvious mistake during a speech, that don't really matter. If you have ever listened

to Martin Luther King's famous speech -"I have a dream", you may notice that he stumbles (结巴) his words

twice during the speech. Most likely, however, you don't remember. Why? Because you were fixing your

attention on his message rather than on his way of speech-making. People care a lot about making mistakes in

a speech because they regard speech-making as a kind of performance rather than as an act of communication.

They feel the listeners are like judges in an ice-skating competition. But, in fact, the listeners are not looking

for a perfect performer. They are looking for a well-thought-out speech that express the speaker's ideas clearly

and directly. Sometimes a mistake or two can actually increase a speakers' attractiveness by making him more

human.

     As you work on your speech, don't worry about being imperfect. Once you free your mind of this, you will

find it much easier to give your speech freely.

1. The underlined part in the first paragraph means that no one will _____. [ ]

A. be smarter than you

B. notice your mistakes

C. do better than you

D. know what you are talking about

2. You don't remember obvious mistakes in a speech because _____. [ ]

A. your attention is on the content

B. you don't fully understand the speech

C. you don't know what the speaker plans to say

D. you find the way of speech-making more important

3. It can be inferred from the passage that _____. [ ]

A. giving a speech is like giving a performance

B. one or two mistakes in a speech may not be bad

C. the listeners should pay more attention to how a speech is made

D. the more mistakes a speaker makes, the more attractive he will be

4. What would be the best title of the passage? [ ]

A. How to Be a Perfect Speaker

B. How to Make a Perfect Speech

C. Don't Expect a Perfect Speech

D. Don't Expect Mistakes in a Speech

5. Which of the following statements is true? [ ]

A. If you are careful enough, you can make a perfect speech.

B. Speech-making is a kind of performance.

C. Listeners are not judges and they pay more attention to the message.

D. Martin Luther King is not a good speaker.

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UML图中,一张交互图显示一个交互,由一组对象及其之间的关系组成,包含它们之间可能传递的消息.()不是交互图。

A.序列图

B.对象图

C.通信图

D.时序图

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假设P为债券价格,F为面值,C为票面收益,r为到期收益率,凡是债券期限,如果按年复利计算,零息债券到期收益率为()。

A.

B.

C.

D.

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