问题 单项选择题

TCP/IP参考模型中,下列关于应用层的描述不正确的是

A.向用户提供一组常用的应用程序

B.是ISO/OSI参考模型的应用层、表示层和会话层

C.位于TCP/IP参考模型中的最高层

D.负责相邻计算机之间的通信

答案

参考答案:D

解析: TCP/IP参考模型应用层对应 ISO/OSI的应用层、表示层和会话层,包括所有的高层协议,确定进程之间通信的性质。

阅读理解

阅读理解

       Hello, my dear friends, today here's a funny cartoon for you! It is a Chinese cartoon. Its name is

Happy Sheep(绵羊) and Big Big Wolf(狼).

       In this cartoon, there are some sheep and three wolves. Happy Sheep is the leading role(主角). He

likes playing football and running. He runs faster than(比) the other sheep. Pretty Sheep likes making

clothes and growing flowers. She is very beautiful. Lazy Sheep( 懒羊羊) is clever. But he doesn't like

doing sports. He likes sleeping best. Force Sheep(沸羊羊) is stronger than the other sheep. Warm Sheep is the class monitor(班长)at school. Slow Sheep is 68 years old. He is old. He is the village head. Every

sheep has a lovely pet(宠物). Big Big Wolf wants to eat sheep. Red Wolf is Big Big Wolf's wife. She is

very bad. Banana Wolf is nice. He is the friend of the sheep. He likes eating bananas very much.

1.________ doesn't like sports.        

A. Lazy Sheep      

B. Force Sheep  

C. Warm Sheep  

D. Happy Sheep

2. Pretty Sheep likes ________.         

A. playing football  

B. sleeping      

C. making clothes

D. eating bananas

3. ________ is the sheep's friend.      

A. Big Big Wolf    

B. Banana Wolf  

C. Red Wolf      

D. Little Wolf

4. There are ________ sheep in the passage(短文).    

A. four            

B. five        

C. six          

D. seven

5. Which is NOT right?

A. Happy Sheep runs slower than the other sheep.

B. Slow Sheep is old.

C. Warm Sheep has a lovely pet.

D. Red Wolf is Big Big Wolf's wife.

多项选择题