问题 单项选择题

关于PC硬件的描述中,下列哪个说法是错误的______。

A.目前的奔腾处理器是32位微处理器

B.微处理器主要由运算器和控制器组成

C.CPU中的Cache是为解决CPU与外设的速度匹配而设计的

D.系统总线的传输速率直接影响计算机的处理速度

答案

参考答案:C

解析: CPU里面的Cache是用于缓存指令和数据的,它是为解决主存速度与CPU速度匹配的差距而设计的。

阅读理解

Read the passage and answer the questions.

  Everyone wants to own the friendship, because without a friend, the world is like a desert. The

friendship is thought very important. Too many people want others to be their friends, but they don’t give

friendship back. That is one of the causes why some friendships don’t last very long. To have a friend, you

must learn to be one. You must learn to treat your friend the way you want your friend to treat you.

Learning to be a good friend means learning the following rules.

  Honesty is where a good friendship starts. Friends must be able to trust one another. If you don’t tell

the truth, people usually find out, and you may lose your friend’s trust. Good friends always trust in one

another to speak and do things honestly.

  Generosity means sharing and sharing makes a friendship grow. You don’t have to give your lunch

money or your clothes, of course. Instead you share your ideas and feelings. These can be valuable to a

friend. They tell your friend what is important to you. By sharing them, you help your friends know you

better.

  Sooner or later everyone needs understanding and help with a problem. Something may go wrong at

school. Talking about the problem can make it easier to solve. Turning to a friend can be a first step in

solving the problem. So to be a friend you must listen and understand. You must try to put yourself in your

friend’s place, so you can understand the problem better.

  No two friendships are ever exactly alike. But all true friendships have three things in common. In

fact, good friendship will just not easily last. That is to say, you must give as much as you take, or

friendship will die away.

1. Is it easy to keep a good friendship?  

____________________________________________________________________.

2. What are the three rules to be a good friend?  

____________________________________________________________________.

3. Which is the base of friendship among the three rules?  

____________________________________________________________________.

4. How do you let your friends know you?  

____________________________________________________________________.

5. In what way can you keep friendships long?  

____________________________________________________________________.

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