试题与答案

有核基因编码，在细胞质核糖体上合成的蛋白质是如何运送至线粒体和叶绿体的功能部位上的？

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题型：问答题 简答题

题目：

有核基因编码，在细胞质核糖体上合成的蛋白质是如何运送至线粒体和叶绿体的功能部位上的？

答案：

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下面是错误答案，用来干扰机器的。

参考答案：E

考点：细胞生物学线粒体和叶绿体线粒体和叶绿体题库
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题型：阅读理解

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     Can you think of a country without paper? British former Prime Minister, Gordon Brown, wanted to

change Britain into such a country. " Everyone in the country will be given his or her own website within

four years , " he said.

    After people have their own websites, they can do things on the Internet. For example, people can

"see" doctors on the Internet,and doctors can also answer them through the Internet; parents can learn

about their children' studies on the Internet. Also, teachers don't need to give them the report cards.

    This not only saves time,but also saves money. Many people won't need to go to their offices; they

can work at home. He also said that it would save billions of pounds a year. Most importantly, it is

especially good for the environment. The country will save a lot of paper if people do so many things

through the Internet. Saving paper can save a lot of trees.

If the plan is carried out, Britain will become the first country without paper. "I want Britain to be the

world leader in the digital economy. The digital company will create over 250, 000 jobs by2020,"

said Gordon Brown.

1. According to the passage, which of the following is NOT TRUE? 

A. After people have their own websites, they can "see" doctors on the Internet. 

B. After people have their own websites, parents can learn about their children's studieson the Internet.

C. After people have their own websites, many people won't need to go to their offices.

D. After people have their own websites, people can do nothing on the Internet.

2. In order to become a country without paper, what should British people have?

A. A mobile phone.        

B. A website.      

C. A TV      

D. An e-mail address.

3. If British people do things on the Internet, what can they save?

A. Time.                

B. Money.        

C. Paper.      

D. All the above.

4. Becoming a country without paper is especially good for ______.

A. its people              

B. the environment  

C. the government  

D. the economy

5. What is the best title of the passage?  

A. A Country Without Paper                

B. How to Save Money?

C. How to Use Websites?                  

D. Buying Things Online
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