题目内容

如果用户要传送的数据的字节长度超过TCP报文字段中的序号字段可能编出的最大序号，则不能用TCP来传输。

A. 对
B. 错

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在停止等待协议中，如果收到重复的报文段时不予理睬，即悄悄地丢弃它而其他什么也没做。

A. 对
B. 错

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PartⅡListening ComprehensionSection ADirections: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A),B), C), and D). Then mark the corresponding letter on Answer Sheet with a single line through the center.[音频]News Item OneQuestions 1 and 2 are based on the news item you have just heard.1

A. Closed roads.
B. Landslides.
C. Heavy rains.
Damaged river banks.

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2

A. To protect public facilitics.
B. To cope with the difficult situation.
C. To maintain social order.
D. To allocatle relief to homeless people.

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News Item TwoQuestions 3 and 4 are based on the news item you have just heard.3

A. China's family planning policy will come to an end.
B. All families can have as many children as they like.
Chinese families will be encouraged to have more children.
D. Chincse families will be allowed to have a second child.

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如果用户要传送的数据的字节长度超过TCP报文字段中的序号字段可能编出的最大序号，则不能用TCP来传输。

A. 对 B. 错

在停止等待协议中，如果收到重复的报文段时不予理睬，即悄悄地丢弃它而其他什么也没做。

2

News Item TwoQuestions 3 and 4 are based on the news item you have just heard.3

A. 对
B. 错