问题 填空题

按照逻辑结构分类,结构可以分为线性结构和非线性结构,栈属于______。

答案

参考答案:线性结构

解析: 数据的逻辑结构,是指数据元素之间的逻辑关系,分为线性结构和非线性结构。常见的线性结构有线性表、栈和队列等,常见的非线性结构有树、二叉树等。

阅读理解

阅读理解

     After too long on the Net, even a phone call can be a shock. My boyfriend's Liverpudlian accent

suddenly becomes too difficult to understand after his clear words on screen; a secretary's tone seems

more rejecting than I'd imagined it would be. Time itself becomes fluid-hours become minutes, and

alternately seconds stretch into days. Weekends, once a highlight of my week, are now just two ordinary

days.

     For the last three years, since I stopped working as a producer for Charlie Rose, I have done much of my work as a tele-commuter. I submit(提交) articles and edit them by E-mail and communicate with

colleagues on Internet mailing lists. My boyfriend lives in England; so much of our relationship is

computer-mediated.

     If I desired, I could stay inside for weeks without wanting anything. I can order food, and manage my

money, love and work. In fact, at times I have spent as long as three weeks alone at home, going out only

to get mail and buy newspapers and groceries. I watched most of the blizzard(暴风雪) of '96 on TV.

     But after a while, life itself begins to feel unreal. I start to feel as though I've merged(融合) with my

machines, taking data in, spitting them back out, just another node(波节) on the Net. Others on line

report the same symptoms. We start to strongly dislike the outside forms of socializing. It's like attending

an A. A. meeting in a bar with everyone holding a half-sipped drink. We have become the Net opponents' worst nightmare.

     What first seemed like a luxury, crawling from bed to computer, not worrying about hair, and clothes

and face, has become an avoidance(逃避),a lack of discipline. And once you start replacing real human

contact with cyber interaction, coming back out of the cave can be quite difficult.

     At times, I turn on the television and just leave it to chatter in the background, something that I'd never done previously. The voices of the programs relax me, but then I'm jarred by the commercials. I find

myself sucked in by soap operas, or needing to keep up with the latest news and the weather."Dateline", "Frontline" , "Nightline," CNN, every possible angle of every story over and over and over, even when

they are of no possible use to me. Work moves from foreground to background.

1. Compared to the clear words of her boyfriend on screen, his accent becomes______.

A. unreal      

B. unbearable        

C. misleading      

D. not understandable

2. The passage implies that the author and her boyfriend live in______.

A. the same city                  

B. the same country

C. different countries              

D. different cities in England

3. What does the last paragraph mean?

A. Having worked on the computer for too long, she became a bit strange.

B. Sometimes TV programs give her comfort and even makes her forget her work.

C. She watches TV a lot in order to keep up with the latest news and the weather.

D. She turns on TV now and then in order to get some valuable information.

4. What is the author's attitude to the computer?

A. At first she likes it but later becomes tired of it.

B. She likes it because it is very convenient.

C. She dislikes it because TV is more attractive.

D. She likes it because it provides an imaginary world.

5.The underlined phrase "coming back out of the cave" probably means______.

A. going back to the dreaming world      

B. coming back home from the outside world

C. bringing back direct human contact    

D. getting away from living a strange life

单项选择题