试题与答案

(71) In the strength of the carrier sign

题型:单项选择题

题目:

(71) In the strength of the carrier signal is varied to represent binary 1 or 0.
(72) is a system that can map a name to an address and conversely an address to an name.
(73) is a three-way handshaking authentication protocol that it’s packets are encapsulated in the point-to-point protocol
(74) is an approach that enables an ATM Switch to behave like a LAN switch.
(75) is an guided media which is made of glass or plastic and transmits signals in the form of light.

A.Coaxial cable

B.Optical fiber

C.Unshielded Twisted-pair Cable

D.Shielded Twisted-pair Cable

答案:

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试题推荐
题型:阅读理解

阅读理解。

     American  eating  is  funny. People  in  America  eat  almost everything with a  fork. And it seems that

holding a knife in one's right hand longer than a few seconds is thought to be against good table manners.

     The system is that if it is necessary to use a knife, people take the fork in their left hands, and cut off a

piece of meat or others. Then  they  put  the knife down, transfer the fork to  their  right  hands, and then

transfer the food to their mouths with  the fork.  This is clearly funny, but it is considered  good  manners.

     There are several results of this system. First,if it is not necessary to use a knife, Americans don't  use

one, because this greatly complicates(使复杂化)things. Therefore, sometimes they will try to cut things like potatoes and even bacon with a fork. Second, since only one implement(器具)is being used, food has to be chased around the plate with the fork. Third, tables are usually laid with one knife and two forks. The outside fork is for the salad. There is no  need for foreign  visitors to follow the  American system and

try to eat the salad with only a fork, but if you do use your knife, remember to save it for the meat.

1. The word "transfer" most probably means “________”.

A. move something from one place to another    

B. make up and down

C.take away

2. From this passage we can know that _______.

A. Americans never use knives with their right hands

B. Americans eat everything with a knife

C. Americans use a fork to put food into their mouths

   

3. According to the passage, Americans eat potatoes with a fork probably because ______.   

A. they are too busy to use a knife    

B. there is no knife

C. they think it is complicated to use a knife

4. Which of the following about American eating is NOT true?

A. Holding a knife in one's right hand longer is not good table manners.

B. Americans will not use a knife if they don't need.

C. Foreign visitors are not allowed to use knives.

5. The best title for this passage is _______.

A. Right Hand or Left Hand    

B. Knife or Fork

C. Eating Customs in America

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