下列有关实验现象描述正确的是 A．打开浓盐酸瓶塞，可看到大量白烟 B．点燃羊毛纤

Someday a stranger will read your e-mail without your permission or scan the website you’ve visited or perhaps someone will casually glance through your credit card purchases or cell phone bills to find out your shopping calling habits

In fact, it’s likely that some of these things have already happened to you. Who would watch you without your permission? It might be a spouse, a girlfriend, a marketing company, a boss, a cop or a criminal. Whoever it is, they will see you in a way you never intended to be seen.

Psychologists tell us boundaries are healthy, that it’s important to reveal yourself partly to friends, family and lovers at appropriate times. But few boundaries remain. The digital bread crumbs you leave everywhere make it easy for strangers to know who you are, where you are and what you like. In some cases, a simple Google search can reveal what you think. Like it or not, increasingly we live in a world where you simply cannot keep a secret.

The key question is: Does that matter?

For many Americans, the answer apparently is “no”.

When opinion polls ask Americans about privacy, most say they are concerned about losing it. 60 percent of respondents say they feel their privacy is “slipping away, and that bothers me”.

But people say one thing and do another. Only a small number of Americans change any behavior in an effort to preserve their privacy. Few people turn down a discount at tollbooths to avoid using the EZ-Pass system that can track automobile movements. Privacy economist Acquisti has run a series of tests that reveal people will give up personal information like social security numbers just to get their hands on a 50-cents-off coupon. But privacy does matter－at least sometimes. It’s like health: when you have it, you don’t notice it. Only when it’s gone do you wish you’d done more to protect it.

小题1:What would psychologists advise on the relationships between friends?

A．Friends should open their hearts to each other.

B．Friends should always be faithful to each other.

C．There should be a distance even between friends.

D．There should be fewer arguments between friends.小题2:Why does the author say “we live in a world where you simply cannot keep a secret”?

A．Modern society has finally developed into an open society.

B．People leave traces around when using modern technology.

C．There are always people who are curious about others’ affairs.

D．Many search engines profit by revealing people’s identities.小题3:According to the passage, privacy is like health in that _____.

A．people will make every effort to keep it

B．its importance is hardly understood

C．It is something that can easily be lost

D．people don’t value it until they lose it小题4:What would be the best title for the passage?

A．Value your health.

B．Treasure your privacy.

C．Boundaries are important between friends.

D．The information age has its own shortcomings.

未申请上市或不符合在证券交易所挂牌交易条件的证券称为（）。

A.非挂牌证券

B.非上市证券

C.场外证券

D.场内证券

下列说法中不正确的两项是（）（）

A.“史大妹妹”心直口快不拘小节，很有男儿气概。她心无城府，曾在大家对长得像林黛玉的戏子“笑而不言”时脱口而出“是像林姐姐的样儿”。

B.元妃送出灯迷让大家猜，宝钗一猜就着，却故作难猜之状。贾母见元春喜欢，也命人制作灯谜让大家猜，还请来了贾政，整个聚会的气氛融洽欢快。

C.元妃下谕叫宝玉等去园中住。贾政传来宝玉，当着王夫人的面，把往日嫌恶之心减了八九分；虽对所起“袭人”名字不满，但又不让改。

D.贾芸从贾琏处打听得凤姐把和尚的事给了贾芹便向母舅卜世仁要冰片麝香，准备向凤姐行贿，但卜世仁拒绝了。最后，颇有义侠之气的醉金刚倪二不要文约不要利钱借十五两三钱多银子给贾芸。贾芸才购得冰片麝香。

E.宝玉叫俏丽干净的小红递茶。小红因此被晴雯骂了一顿；回家做梦，梦见贾芸拾了她的手帕。

在线路平、断面图上常用的代表符号N表示（）

（A）直线杆

（B）转角杆

（C）换位杆

（D）耐张杆

防烟排烟系统的安装主要包括风管、阀门组件和风机等主要设备的安装检测与调试。下列关于风管的安装与检测中，错误的是（）。

A.现场风管的安装，不得缩小接口的有效截面

B.风管接口的连接应严密、牢固，垫片厚度不应小于3mm，不应凸入管内和法兰外

C.风管与砖、混凝土风道的连接接口，应逆着气流方向插入，并应采取密封措施

D.风管穿越隔墙或楼板时，风管与隔墙之间的空隙，应采用水泥砂浆等不燃材料严密填塞