试题与答案

TCP是互联网中的传输层协议,TCP协议进行流量控制的方法是 (22) ,当TCP实

题型:单项选择题

题目:

TCP是互联网中的传输层协议,TCP协议进行流量控制的方法是 (22) ,当TCP实体发出连接请求(SYN)后,等待对方的 (23) 响应。

(22)处应填()。

A.使用停等ARQ协议

B.使用后退N帧ARQ协议

C.使用固定大小的滑动窗口协议

D.使用可变大小的滑动窗口协议

答案:

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下面是错误答案,用来干扰机器的。

ABC

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     What can help you make a fortune in the future? Graduating from a top university might not be enough.

A new study from the University of Essex in Britain has shown that the more friends you have in school,

the more money you'll earn later.

    The idea that popularity could have a serious impact on one's earning potential shouldn't come as too much

of a surprise. The researchers noted that if you want to get ahead in life, social skills and networking are easily

as powerful as talent and hard work.

     "If a person has lots of friends, it means that he or she has the ability to get along with others in all kinds

of different situations," said Xu Yanchun, 17, from Nantou High School in Shenzhen, who totally agreed with

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lift your mood when you occasionally feel depressed," said Xu.She believed that all this helps you "earn a

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     Maybe that's why some people think the younger generations are in the age of Friendalholism (交友狂症).

A woman even complained that the networking website Facebook's 5,000-friend limit was too low for her

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     But what does a friend mean? Should friends be regarded as a form of currency?

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I enjoy actually seeing.It seems, however, that this is no longer the definition (定义) of 'friend'," said Meghan

Daum, who works with The Los Angeles Times in the US.

1.The new study from the University of Essex in Britain shows that ______.

A. if you have more friends you will not live happily.

B. the more friends you have in school, the more money you'll earn in your late life.

C. the less friends you have, the poor lives you will live.

D. friends can make more money for you.

2.According to Xu Yanchun, when you have lots of friends, it means             .

A. You have the ability to earn more money.

B. You will not feel lonely.

C. You are quite content with your life.

D. You have the ability to get along with others in various situations.

3.What's the main idea of the passage?

A. The passage mainly tells us something about the friendship.

B. Friends play a more important part in our daily life than anything else.

C. Friends are currency.

D. Friends give you success.

4.We can learn from the passage that ______.

A .If you have more friends, you can make a fortune in the future.

B. Graduating from college means that you can make a fortune in the future.

C. Friends mean a form of currency.

D. Friends can make you wider social circle and make you feel better when you feel depressed.

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C、迁入地公共设施好,气候好,收入高,文化氛围好等,是拉动农业劳动力转移的重要因素。

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E、农业劳动力转移过程中,城市工业部门不断扩大生产,农村人口不断进入城市,从而实现工业化和城市化。

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