试题与答案

阅读理解。 This is a room in Kate's house. T

题型:阅读理解

题目:

阅读理解。

     This is a room in Kate's house. There is a big bed, a table, a computer and some chairs in it. There's a

glass and some books on the table. There is a picture on the wall. Kate is in the room. She is looking at the

picture. Her father and mother are in the school. They work hard.

1. Is there only one room in Kate's house?   

A. Yes, there is.

B. There is a bed.

C. There is a computer.

D. I don't know.

2. What's in the room?   

A. Only a bed.

B. Only a table.   

C. Only some chairs.

D. A bed, a table, a computer and some chairs.

3. Is there anything on the table?

A. Yes, there is.

B. No, there isn't.  

C. Some books.

D. A glass.

4. Who is at home?   

A. Kate's father.

B. Kate's mother.  

C. Kate's brother.

D. Kate.

5. Kate's father and mother are _____.   

A. teachers

B. students

C. friends

D. at home

答案:

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题型:单项选择题

A glue that holds the whole Internet together is the network layer protocol, (71) .Unlike most older network layer protocols, it was designed from the beginning with internetworking in mind. Its job is to provide a (72) way to transport data grams from source to destination, without regard to whether these machines are on the same network or whether there are other networks in between them.

Communication in the Internet works as follows. The (73) layer takes data streams and breaks them up into data grams. Each datagram is transmitted through the Internet, possibly being fragmented into smaller units as it goes. When all the pieces finally get to the destination machine, they are reassembled by the (74) layer into the original datagram. This datagram is then handed to the transport layer, which inserts it into the receiving process’ input stream.

An IP datagram consists of a header part and a text part. The header has a (75) part and a variable length optional part.

71()

A.IP (Internet Protocol)

B.IP (Interworking Protocol)

C.TCP (Transport Control Protocol)

D.TCP (Transfer Communication Protocol)

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