下图是在一台主机上用sniffer捕获的数据包,请根据显示的信息回答下列的问题。(1

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问题:

下图是在一台主机上用sniffer捕获的数据包,请根据显示的信息回答下列的问题。

(1)该主机的IP地址是(1)

(2)该主机上正在浏览的网站是(2)

(3)该主机上设置的DNS服务器的IP地址是(3)

(4)该主机采用HTTP协议进行通信时,使用的源端口是(4)

(5)根据图中“No.”栏中的信息,标示TCP连接三次握手过程完成的数据包的标号是(5)

(3)处是()

考点:计算机等级考试网络技术三级网络技术机试
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按1-5-3-6-2-4工作的发动机当1、2、3缸活塞运行到压缩上止点时5、4、6缸活塞位于()。

A.进气

B.压缩

C.作功

D.排气行程中

题型:填空题

Risk quantification includes______.

A.enumerating sources of internal and external events

B.identifying potential events and impact

C.evaluating probability and impact

D.developing contingency plans and resources

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问题行为与差生、后进生等问题学生的( )。

A.对象不同

B.概念不同

C.都是对学生的总体评价

D.都是一个教育性概念

题型:填空题

40,23,( ),6,11

A.7

B.13

C.17

D.19

题型:填空题

Time spent in a bookshop can be most enjoyable, whether you are a book-lover or merely there to buy a book as a present. You may even have entered the shop just to find shelter from a sudden shower. But the desire to pick up a book with an attractive dust-jacket is irresistible. You soon become absorbed in some book or other, and usually it is only much later that you realize that you have spent far too much time there.

This opportunity to escape the realities of everyday life is, I think, the main attraction of a bookshop. There are not many places where it is possible to do this. A music shop is very much like a bookshop. You can wander round such places to your heart’s content. If it is a good shop, no assistant will approach you with the inevitable greeting: "Can I help you, sir" You needn’t buy anything you don’t want. In a bookshop an assistant should remain in the background until you have finished browsing. Then, and only then, are his services necessary.

You have to be careful not to be attracted by the variety of books in a bookshop. It is very easy to enter the shop looking for a book on, say, ancient coins and to come out carrying a copy of the latest best-selling novel and perhaps a book about brass-rubbing -- something which had only vaguely interested you up till then. This volume on the subject, however, happened to be so well illustrated and the part of the text you read proved so interesting that you just had to buy it. This sort of thing can be very dangerous. Booksellers must be both long suffering and indulgent.

There is a story which wei1 illustrates this. A medical student had to read a textbook which was far too expensive for him to buy. He couldn’t obtain it from the library and the only copy he could find was in his bookshop. Every afternoon, therefore, he would go along to the shop and read a little of the book at a time. One day, however, he was dismayed to find the book missing from its usual place and about to leave when he noticed the owner of the shop beckoning to him. Expecting to be reproached, he went toward him. To his surprise, the owner pointed to the book, which was tucked away in a corner. "I put it there in case anyone was tempted to buy it," he said, and left the delighted student to continue his reading.

According to the text, in a good bookshop()

A. nobody takes any notice of you

B. the assistant greets you in a friendly way

C. your heart is contented

D. you feel that you are in a music shop

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