气体分馏装置开车操作与开车准备工作安全上最大区别是（）。

发行人应根据交易的性质和金额对关联交易进行分类披露。（）

可造成外周性性早熟的因素有（）

A.肾上腺皮质增生症

B.下丘脑垂体病变

C.性腺肿瘤

D.外源性含激素摄入

E.McCune-Albright综合征

It seems some people have something bad to say about Facebook, the social media website that now has attracted more than 300 million members. To them I have only this to say: Stop please!

A recent article in the Wall Street Journal blamed Facebook’s ability to ruin friendships, saying that it limits communication to typing and encourages people to spend far too much time with friends they have never met.

Having used Facebook since its first year, I find these arguments false. The simple truth is that the problems are only a symptom of Facebook abuse. Like many things, it is only as harmful to your life and relationships as you allow it to be. Consider arguments against watching too much TV and overeating.

Try using Facebook to find friends who may have long ago changed their e-mail addresses and phone numbers, to find out what your old college friends are up to, to congratulate your friends on their latest birthdays, to share pictures and articles you find interesting, and to join in the discussion about them with your friends.

Sure, I had days when I wasted a little more time on Facebook than I should, but I’m not going to blame Facebook for my own laziness. If Facebook wasn’t there, I would have found something else to waste time on. To my “friends”: if you don’t feel like broadcasting your life stories on your Facebook, don’t. If you tire of my personal updates, ignore them. If you don’t want to join in the popular online games, don’t. It is a fun tool at your fingers that can be used for both good and bad. If you don’t like using Facebook, don’t.

I am now a consultant at the Department of State. I use Facebook to keep in touch with friends, family, and colleagues who live and work all over the world.

小题1:Why did the article in the Wall Street Journal blame Facebook?

A．Because it makes people spend too much time online.

B．Because it can make people lose their real-life friends.

C．Because it is as harmful to people’s lives as watching TV.

D．Because it encourages people to make friends with strangers.小题2:What does the author suggest using Facebook to do?

A．To find out lost e-mail addresses and phone numbers.

B．To arrange appointments with our old college friends.

C．To collect interesting pictures and articles from our friends.

D．To keep in touch with friends who we haven’t called for long.小题3:We can imply from the passage that by using Facebook we can ____.

A．read other’s personal updates

B．write our life stories online secretly

C．decide who can read our life stories

D．refuse to join in popular online games小题4:The author writes the last paragraph to ____.

A．prove that Facebook can be well used

B．gain support from the Department of State

C．show that Facebook is used all around the world

D．introduce how she uses Facebook in her work as a consultant

定向发行的债券可以用协议方式转换，也可经过中国证监会批准采取的其他方式转让，最小转让单位不得少于面值（）万元。

A．20

B．30

C．40

D．50

在贴现现金流方法下，在哪种条件下项目是可以接受的？（）

A、在整个项目生命期的所有估算现金流的净现值总和等于利润

B、现金流入的现值比现金流出的现值多出一个既定的百分比

C、所有预计将来的现金流的净现值和首次现金投资的比值大于1

D、回收期开始于项目的次年