将用户发来的整个信息切成若干长度一定的数据块,然后以存储转发方式在网上传输的数据交换

题型:单项选择题

问题:

将用户发来的整个信息切成若干长度一定的数据块,然后以存储转发方式在网上传输的数据交换技术是()

A.电路交换;

B.报文交换;

C.分组交换;

D.底层交换;

考点:计算机基础计算机基础题库
题型:单项选择题

根据对话情景,填入恰当的单词,每空一词。

A: Mum, I can't  1  my suitcase. Have you seen it anywhere?

B: I  2  it on your bed a few minutes ago. It  3  still be there.

A: Let me have a look. Oh, yes, you're right. It's on my bed.

B: Have you got everything  4 ?

A: Er,…I'm not  5 . There're so  6  things to pack, you know.

B: OK. Let me help you. Have you  7  the umbrella?

A: Of course I have.

B:  8  you packed some food or drink?

A: No, I haven't. Bring some food and drink…Mm, that's necessary.

    Mum, have you found the shopping bag  9 ?

B: Yes, it's in the kitchen.

A:  10  go and get some food and drink.

B: OK.

题型:单项选择题

女患者,26岁。于1月前自然分娩一女婴, * * 一直有出血,淋漓不爽,量不多,色紫暗,有血块,伴小腹痛,拒按,舌紫暗,脉弦涩。

其治法是()

A.清热凉血止血

B.理气止血

C.补气摄血

D.化瘀止血

E.滋阳清热止血

题型:单项选择题

骨折()

A.感染性休克

B.损伤性休克

C.心源性休克

D.失血性休克

E.过敏性休克

题型:单项选择题

Advertising is a highly developed twentieth-century industry. The development of radio, television, cinema, magazines and newspapers has gone hand in hand with the development of advertising. Why is advertising so popular? Is it a waste of money? It has been proved again and again that repeated advertising increases product sales. Since it increases production, the price can be reduced. Therefore advertising, instead of making a product more expensive, makes it cheaper.

Advertising is now a scientific business. Once managers would say jokingly, " I know that half of what I spend on advertising is wasted, but I don't know which half." Now, all parts of an advertising program are properly measured and researched.

What makes a good advertisement? There have been major changes in advertising in the past sixty years. People read advertisements partly for information and partly for pleasure. Today's advertisements often start with a question, or a puzzle, with the purpose of attracting the reader's attention. Of course, most advertisements contain information. But this is usually contained in a text that is interesting and often funny. Humor is very important. Sometimes advertisements tell a story, or the story may be continued over a number of advertisements. However, there is a danger in this. It is possible that the reader or viewer will remember the advertisement but not the name of the product.

小题1:The purpose of advertising is ____.

A.to increase product sales

B.to make a product much better

C.to spend more money

D.to reduce the production小题2:Which of the following can be used in place of the underlined phrase "hand in hand" ?

A.Here and there.

B.Again and again.

C.As usual.

D.At the same time.小题3: What is meant by what managers said in the second paragraph?

A.A11 the money on advertising was wasted.

B.Not all the advertisements were well designed.

C.A11 the managers knew about advertising then.

D.Managers spent no money on advertising.小题4:What does the writer think of advertising?

A.Useless.

B.Unnecessary.

C.Important.

D.Wasteful.

题型:单项选择题

省煤器再循环管道,是从省煤器入口给水管处直接与汽包水侧相通的连络管。它的作用是使()形成一个自然循环回路,在升火点炉和熄火停炉的过程中保护省煤器。

A.汽包与省煤器

B.汽包与回路

c.省煤器与连络管

D.汽包与连络管

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