你若上网搜索唐太宗时期的有关历史，应输入下列哪一关键词？ [ ] A．文景之治

阅读理解。

     If I had one million Yuan, I would buy  you  a  palace!  Do I have one million Yuan? No, I don't．So I

only can spend ten fens on this short message, sending you my best wishes!

    Today SMS-Short Message  Service is  popular,  and China Mobile  says that every second, there are

410 messages being sent．

    Look around  you! People are  watching their mobiles, smiling  or laughing．Thumbs(拇指) are moving

quickly on mobiles, bringing happiness to their friends．Through SMS, we know the weather report, share jokes and news, express love and friendship．

    SMS is  becoming more  and  more  popular．If  reported that 67％of young people like to send short

messages to greet each other．Internet SMS will be more helpful to people．I'm thankful for the progress because SMS saves me much money．Just on the top of the thumb, so much joy can be found．

1．SMS can help people do the followings except ________．

A．knowing the weather report      

B．sharing jokes and news

C．expressing love and friendship    

D．spending more time traveling

2．The writer thinks that ________．

A．SMS helps people a lot            

B．young people dislike SMS

C．he makes SMS more popular      

D．he will buy a palace for his friend

3．_______ of young people like to send short messages to greet each other．

A．40％      

B．50％      

C．60％      

D．67％

4．The passage is mainly about _________．

A．How to search Internet          

B．how to send short message

C．the joy (快乐) of SMS    

D．ways of saving money

5．Which of the following is WRONG according to the passage?

A．The writer has one million Yuan．

B．The writer spends ten fens on this short message．

C．More than 400 people send messages every second．

D．Internet SMS will be more helpful to people．

_________! The music_________ so nice.

A．Listen; sounds

B．Hear; sounds

C．Listen; sound

D．Hear; is listening

简单随机抽样是（）
系统抽样是（）

A.随机抽取总体中各个群的全部观察对象组成样本

B.随机抽取总体一定数量的观察单位组成样本

C.将总体按一定顺序分为几个部分，等间隔抽取几个部分组成样本

D.将总体按某种特征分组，每组随机抽取观察单位组成样本

E.将总体按时间分组，抽取中位时间的观察单位组成样本

“被”字被动句式

试述癫证与郁病的区别。