问题 单项选择题

下列关于Linux与传统的网络操作系烧相比说法中不正确的是( )。

A.Linux操作系统具有虚拟内存的能力

B.Linux操作系统不是UNIX系统的变种,因此Linux上程序不适合UNIX平台上运行

C.Linux操作系统不限制应用程序可用内存的大小

D.Linux操作系统支持多用户,在同一时间可以有多个用户使用主机

答案

参考答案:B

解析:Linux操作系统不是UNIX的变种,但Linux操作系统符合UNIX标准,所以可以将linux上程序移迁到UNIX主机上执行。

选择题
阅读理解

Self-esteem(自尊心)is all about how much we feel valued,accepted and thought well of by others---and how much we value,love and accept ourselves.Poeple with healthy self-esteem are able to feel good about themselves,appreciate their own worth,and take pride in their abilities,skills,and accomplishments with others,feel happier,find it easier to deal with low self-esteem may feel as if no one will like them or accept them or that they can’t do well in anything.

Here are some steps that may help improve your self-esteem:

Try to stop     Try to thinking about negative thoughts about yourself.If you’re used to focusing on your shortcomings,start thinking about positive aspects of yourself that outwheigh them .Each day,write down three things about yourself that make you happy.it is good to aim high,but your goals should be within reach.That’s why you should set pratical goals and never expect the impossible.Mistakes are part of learning,so view mistakes as learning opportunities.Accept that you will make mistakes because everyone does.Also, you should recognize what you can change and what you can’t.if you realize that you’re unhappy with something about yourself that you can change, then start today.If it’s something you can’t change(like your height),then start to work toward loving yourself the way you are.Feeling like you’re making a difffference and that your help is valued can do wonders to improve self-esteem.So don’t hesitate to make a contribution.Help a classmate who’s having trouble,help clean up your campus,or volunteer your time in some other way.

Self-esteem plays a role in almost everything you do.It’s never to be late to build healthy positive self-esteem.It takes some work,but healthy self-esteem is an asset you’ll have for life.

小题1:What does the author mainly want to tell us in this passage?

A.Self-esteem plays an important role in life.

B.What self-esteem means

C.How people can improve their self-esteem.

D.What people with healthy self-esteem are like.小题2:The  underlined word “them” in paragagh 3 refers to_____.

A.negative thoughts

B.your shortcomings

C.positive aspects

D.your goals小题3:According to the passage,which of the following can help you improve your self-esteem?

A.Setting high goals.

B.Never forgiving yourself for your mistakes.

C.Changing all the things that make you upset.

D.Lending a hand to a classmate in trouble.小题4:How many ways to improve your self self-esteem are given in this passage?

A.4

B.5

C.6

D.7