问题 单项选择题

下列叙述中正确的是______。

A.顺序存储结构的存储一定是连续的,链式存储结构的存储空间不一定是连续的
B.顺序存储结构只针对线性结构,链式存储结构只针对非线性结构
C.顺序存储结构能存储有序表,链式存储结构不能存储有序表
D.链式存储结构比顺序存储结构节省存储空间

答案

参考答案:A

解析: 链式存储结构既可以针对线性结构也可以针对非线性结构,所以B选项与C选项错误。链式存储结构中每个结点都由数据域与指针域两部分组成,增加了存储空间,所以D选项错误。

阅读理解

阅读下面的短文,根据短文内容回答问题。

     Now and then we all get ill. Then we usually go to see a doctor. Doctors know a lot about what makes

  us ill. They may give us something to take. The medicine often makes us well again.

     But sometimes the doctor's medicine doesn't work. A sick person does not get well. The pain will not

 go away. This happened to one man. He was in hospital, but he was not getting well. Then he found a new

 "doctor" inside himself. This new "doctor" was his own sense of humor (幽默感). He saw funny films. He

  read funny books. And something wonderful happened. Laughing took away his pain. Then he was able

 to sleep and rest. His own happy feeling helped him to feel well again. He said laughing was his best "

 medicine". His doctor thought so, too.

     Another  man was also ill, and he had a terrible pain in his back. The doctors could not stop it from

 hurting. So the man began to "Picture" his pain. In his head he "drew " a picture of a dog. He imagined it

 as a real dog. And he made friends with the dog. And his pain went away!

     These stories may surprise you. But more and more people are getting well in this way. So visit the

 "doctor" inside your own head and you can stay happy and well.

1. Does medicine always work?

    ________________________________  

2. How many sick men are mentioned(提及) in this passage?

    ________________________________________

3. Who was  the first sick man's new "doctor"?

    ____________________________________________    

4. Who made the second sick man well again, the doctor or the "dog" in his head?

    __________________________________________   

5 .Why does the writer ask us to visit the "doctor" inside our head?

    _____________________________________________

填空题