Linux的图形界面虽然使用简单、直观,但是会 占用大量系统资源,降低运行效率,增加安全的隐患 。学习和工作中,应尽可能使用Linux系统的命令行 界面,通过命令来完成操作。要熟练掌握Linux操作 系统,就必须熟练运用Linux下的各种命令,本章将 为大家介绍 Linux命令的基本功能和使用

Linux操作系统是当今应用广泛的一种操 作系统。它功能强大,性能稳定,深受用户的 欢迎,尤其在服务器领域占据了很大市场份额 。本章将回顾 Linux的历史,介绍inux操作系 统的一些基本概念和发行版本,使大家对Lnux 系统有一个全面的认识

I. Listening skills Identifying the main Information to go Hong Kong would also like me to visit him. What should I do w: You may miss your uncle and be sorry about not seeing Hong Kong, but I really think driving from city to city with friends would be more fun uncle Hong ko fu

unit 9 Here are the seasons to be jolly I. Basic listening practice the holidays people celebrate, Christmas, Easter, Mother's Day . which are the most important to you? M: Christmas and easter, because they mark events in Jesus Christ's life: his birth and

II. Listening Skills Making Calculations 1. W: It sounds expensive. Why did they charge you so much for repairing the computer? M: Well, its $25 for labor to start with. A new modern cost another 50 bucks. On top of that I needed a new battery, and it cost $17

Flying there is not half the fun I. Basic listening Practice I Script M: would you prefer a window or an aisle seat, madam? W: Aisle, please. If there's none left, then a wind. w seat is Ok. But I don't like middle seats。 Q: what is the order of the womans preference? C: aisle-wingdow-minddle

Uint10 I. Basic listening Practice 1. Script W: Many Chinese students are too shy to say anything in a classroom M: I think they dont speak because their culture values modesty, and they dont want to appear to be showing off. Goes back to Confucius

Basic listening Practice 1. Script W: Let me recommend my brother to you. He's really done well in the stock market over the last M: The real question is this: How have you dine by taking his advice Q: What does the man mean?

Uint I. Basic listening practice 1. Script M: We offer all kinds of tours and excursions. do you have anything particular in W: Not really, we'd just like to see the local sights and have an English speaking guide. It would be good if they were someone local too. My husband is interested in the local stories and folklore

Ⅱ. Listening skills Understanding Times and dates w: Oh, look at the clock It's 5: 15. I'll be late for Jennifer's birthday party! I was supposed to leave at 5 o'clock M: Don't worry! You still have some time. The clock is twenty minutes fast Q What time is it now?