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【简答题】
同学们在两的时间里学习了网络领域两个很著名的模型:OSI模型和TCP/IP模型。这两个模型对于我们理解网络中数据的运行有帮助。我想请同学们把你对这两个模型的理解用自已的语言描述出来,内容主要包括每一层的作用;封装和解封装、应用层几个协议(HTTP\FTP\SMTP\POP3\DNS)的作用。不需要在网上抄的定理,把自已的理解记录在纸上。在下一次上课时用照片的形式上传到讨论里。期待看到同学们的答案。
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参考答案：
举一反三
【简答题】Unit 2 听力L 3: A tour of the offices (2) Directions: After lunch Marty and Janet continue the tour of the offices. Choose T (true) or F (false) before these sentences.
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【单选题】MCS-51 系列单片机内部的定时 / 计数器是( )位的。
A.
2
B.
4
C.
8
D.
16
查看完整题目与答案
【单选题】Directions:choose the best answer to each of the questions you hear on the recording.
A.
Because it is a matter of courtesy.
B.
Because she doesn ’ t want to have the door slammed in her face.
C.
Because the door is too heavy for her to hold.
D.
Because she has had the bad experience of having a squashed nose
查看完整题目与答案
【判断题】Directions: If the relative pronoun can be omitted, please choose T; if not, choose F. 判断以下10个句子中的关系代词是否可以省略。如果可省略,请选择“正确”;如果不可省略,请选择“错误”。 We talked about the party which Natalia wants to organize for...
A.
正确
B.
错误
查看完整题目与答案
【单选题】Directions:choose the best answer to each of the questions you hear on the recording.
A.
The person walking in front of him didn ’ t hold the door.
B.
He didn ’ t try to hold the door.
C.
His friend deliberately let the door swing back in his face.
D.
He was slow in taking actions.
查看完整题目与答案
【简答题】Directions : Read the following passage and choose the most suitable heading from this list for each paragraph of the passage. There is one extra heading. A. Don't get too close B. Know your boss C. D...
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【单选题】Directions:choose the best answer to each of the questions you hear on the recording.
A.
Because men never open doors for women.
B.
Because men always expect women to open doors for them.
C.
Because gender roles have changed over the years.
D.
Because what happens in real life isn ’ t the same as that in a fairy tale.
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【单选题】Directions:choose the best answer to each of the questions you hear on the recording.
A.
He thinks that there isn ’ t any significant difference in their social  roles.
B.
He thinks that men and women should perform their own roles, in the family.
C.
He thinks that men and women are now switching their social roles
D.
He thinks that women are now playing more and more important roles in society.
查看完整题目与答案
【单选题】Directions: Choose the best translation for each sentence from the four choices marked A, B, C, and D, then write your answer on the Answer Sheet. The sales promotions haven ’ t been very successful t...
A.
今年的促销并不成功 。
B.
今年的促销十分成功 。
C.
今年的促销十分不成功 。
D.
今年的促销并不十分成功 。
查看完整题目与答案
【单选题】MCS-51系列单片机内部的定时/计数器是 ( )计数器。
A.
加1
B.
减1
C.
乘1
D.
除1
查看完整题目与答案
相关题目：
【简答题】Unit 2 听力L 3: A tour of the offices (2) Directions: After lunch Marty and Janet continue the tour of the offices. Choose T (true) or F (false) before these sentences.
查看完整题目与答案
【单选题】MCS-51 系列单片机内部的定时 / 计数器是( )位的。
A.
2
B.
4
C.
8
D.
16
查看完整题目与答案
【单选题】Directions:choose the best answer to each of the questions you hear on the recording.
A.
Because it is a matter of courtesy.
B.
Because she doesn ’ t want to have the door slammed in her face.
C.
Because the door is too heavy for her to hold.
D.
Because she has had the bad experience of having a squashed nose
查看完整题目与答案
【判断题】Directions: If the relative pronoun can be omitted, please choose T; if not, choose F. 判断以下10个句子中的关系代词是否可以省略。如果可省略,请选择“正确”;如果不可省略,请选择“错误”。 We talked about the party which Natalia wants to organize for...
A.
正确
B.
错误
查看完整题目与答案
【单选题】Directions:choose the best answer to each of the questions you hear on the recording.
A.
The person walking in front of him didn ’ t hold the door.
B.
He didn ’ t try to hold the door.
C.
His friend deliberately let the door swing back in his face.
D.
He was slow in taking actions.
查看完整题目与答案
【简答题】Directions : Read the following passage and choose the most suitable heading from this list for each paragraph of the passage. There is one extra heading. A. Don't get too close B. Know your boss C. D...
查看完整题目与答案
【单选题】Directions:choose the best answer to each of the questions you hear on the recording.
A.
Because men never open doors for women.
B.
Because men always expect women to open doors for them.
C.
Because gender roles have changed over the years.
D.
Because what happens in real life isn ’ t the same as that in a fairy tale.
查看完整题目与答案
【单选题】Directions:choose the best answer to each of the questions you hear on the recording.
A.
He thinks that there isn ’ t any significant difference in their social  roles.
B.
He thinks that men and women should perform their own roles, in the family.
C.
He thinks that men and women are now switching their social roles
D.
He thinks that women are now playing more and more important roles in society.
查看完整题目与答案
【单选题】Directions: Choose the best translation for each sentence from the four choices marked A, B, C, and D, then write your answer on the Answer Sheet. The sales promotions haven ’ t been very successful t...
A.
今年的促销并不成功 。
B.
今年的促销十分成功 。
C.
今年的促销十分不成功 。
D.
今年的促销并不十分成功 。
查看完整题目与答案
【单选题】MCS-51系列单片机内部的定时/计数器是 ( )计数器。
A.
加1
B.
减1
C.
乘1
D.
除1
查看完整题目与答案
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