电脑中的排版系统主要完成（）。A、书刊排版B、图片处理C、公文文件编辑D、电子邮件制

    “I sometimes get up at three or four in the morning and I surf the net．”

“I often check my e-mail forty times a day．”

“1 often spend more than three hours during one time on the net．’’

“I spend more time in chat rooms(聊天室)than with my‘real—life’friends．”

Do you know who like these? They are part of a new addiction(瘾)called Internet addiction. Internet addicts spend at least thirty to forty hours online every week．The use of the Internet can be an addiction like drug(毒品)use．People lose control(控制)of the time they spend on the Internet．

For example, one college student was missing for several days．His friends were worried．and they called the po1ice．The police found the student in the computer lab：he was surfing the net for several days straight．

Studies show that about 6％to 10％of Internet users become addicted．And people worry about the teens because the Internet is changing the playing field for some of them．They spend more time in cyber—space than in the real world of friends and family．

Is“surfing the net”a hobby or an addiction for you? You may have a problem if you have these symptoms(症状)

●You do not go to important family activities or you do not do school work because you like to spend hours on the Internet．

●You can’t wait for your next online time．

●You plan to spend a short time online，but then you spend several hours．

●You go out with your friends less and less．

小题1:What does the beginning of the passage tell us______ .

A．How to become an Internet addict?

B．What an Internet addict usually does?

C．Where to find an Internet addict?

D．Why to write this passage?小题2:How does the writer describe the addicts’ use of Internet?

A．It is something like keeping drugs．

B．It is a way of producing drugs．

C．It is like taking drugs．

D．It is terrible to imagine．小题3:Why do people worry about the teens?

A．The teens are wasting too much money．

B．They used to work on the Internet．

C．The playing field will disappear．

D．More and more teens will become addicted to the Internet．小题4:The example in the passage shows that

A．Internet problems are more serious among college students

B．Internet addicts usually stay in the computer lab without sleep

C．Some of the Internet users have already been seriously addicted

D．The police often help to find those Internet addicts小题5:What is the writer trying to tell us in the passage?

A．Don’t be addicted to the Internet． B．Go to family activities more often．

C．Do things as you have planned．      D  .Stay with your parents as often as possible

据研究，当洗衣机中洗衣粉的含量在0.2%～0.5%之间时，衣服的洗涤效果较好，因为这时表面活性较大．现将4.94千克的衣服放入最大容量为15千克的洗衣机中，欲使洗衣机中洗衣粉的含量达到0.4%，那么洗衣机中需要加入多少千克水，多少匙洗衣粉？（1匙洗衣粉约0.02千克，假设洗衣机以最大容量洗涤）

前列腺癌首选检测（）.

A.AFP

B.CEA

C.PSA

D.CA125

E.CA19-9

可塑法成型用的石膏模型若太干易产生坯体开裂或花底缺陷。

如果监理工程师在工作中出现问题，失误或行使施工合同赋予的权力造成承包人的损失，( )必须承担合同规定的相应赔偿责任。

A．监理工程师
B．发包人
C．监理单位
D．承包人