问题 单项选择题

下列描述中,不是线性表顺序存储结构特征的是( )。

A.不便于插入和删除

B.需要连续的存储空间

C.可随机访问

D.需另外开辟空间来保存元素之间的关系

答案

参考答案:D

解析: 线性表的顺序存储是用一片连续的空间来存放数据元素,其特点是逻辑上相邻的元素在物理位置上也相邻。数据元素之间逻辑上的先后关系自动隐含在物理位置的相邻元素之中,因此不需要另外开辟空间来保存元素之间的关系。

阅读理解

I remember my math teacher Mr. Young very well. He stood out because the kids made fun of him. He was missing one of his fingers, and always pointed at students with his middle finger.

I was not very good at English and math. No matter how hard I tried, I just could not figure out why I did not understand what all the other kids found so easy to learn.

One day, I was told that if I got one more E on my report card, I would be taken to the “big prison for kids”.

I tried really hard for weeks. I just couldn’t understand how to make different parts of numbers into whole things.

The day before report cards were to come out, I knew that Mr Young would give me an E, just like he always did.

I went to Mr. Young and told him that the orphanage (孤儿院) was going to send me to the big prison if I got another E on my report card. He told me there was nothing he could do; it would be unfair to the other kids if he gave me a better grade than I had actually earned. I smiled at him and said, “Mr. Young, do you know how the kids make fun of you because you’re missing your finger?”

He looked at me, moved his mouth to one side and said nothing.

“They shouldn’t do that to you because you can’t help not having a finger, Mr Young. Just like I can’t help not being able to learn numbers and stuff like that,” I said.

The next day, when I got my report card, I tucked it into one of my books. While on the school bus, I opened it: Geography, B+; Mechanical Drawing, C-; English, D-; History, C-; Gym, B+; Art, C; Math, D-.

That math grade was the most favorite one I ever received. Because I knew that someone in the world finally understood what it was like for me to be missing a finger inside my head.

小题1:From the second paragraph we can infer that the boy is ______ in some subjects.

A.mind-blowing

B.slow-witted

C.fun-loving

D.badly-behaved小题2: Where may the boy live according to the passage?

A.In an orphanage.

B.In a big prison.

C.In the school dormitory.

D.In his home.小题3:. What grade should the boy have got in the math test this time?

A. D-.            B. C.             C. B+.             D. E.

小题4: The underlined word “tucked” in the passage most probably means “________”.

A.stuck

B.listed

C.hid

D.copied小题5: The reason why the boy remembers Mr Young is that ______.

A.he missed one of his fingers

B.he treated his students very well

C.he understood the boy

D.he taught his students in a special way

单项选择题