下列哪项不是胎儿宫内发育迟缓继续妊娠的指征：A．胎儿尚未足月 B．胎儿已经足月 C．

阅读理解。

     Perhaps you have heard a lot about the Internet,but what is it,do you know?The Internet is a

network．It uses the telephone to join millions of computers together around the world．

     Maybe that doesn't sound very interesting．But when you're joined to the Internet,there are

lots and lots of things you can do．You can send E-mails to your friends,and they can get them

in a few seconds．You can also do with all kinds of information on the World Wide Web(WWW)．

     There are many different kinds of computers now．They can all be joined to the Internet．

Most of them are small machines sitting on people's desks at home,but there are still many others

in schools,offices or large companies．These computers are owned by people and companies,

but no one really owns the Internet itself．

    There are lots of places for you to go into the Internet．For example, your school may have

the Internet．You can use it during lessons or free time．Thanks to the Internet,the world is

becoming smaller and smaller．It is possible for you to work at home with a computer in front,

getting and sending the information you need．You can buy or sell whatever you want by the

Internet．But do you know 98％of the information on the Internet is in English?So what will

English be like tomorrow?

1. What is the passage mainly about?

A. Internet.

B. Information.

C. Computers.

D. E-mails.

2. Which is the quickest and cheapest way to send messages to your friends?

A. By post.

B. By E-mails.

C. By telephone.

D. By satellite.

3. Which may be the most possible place for people to work in tomorrow?

A. In the office.

B. At school.

C. At home.

D. In the company.

4. What does the writer try to tell us with the last two sentences?

A. English is important in using the Internet.

B. Most of the Internet is in English.

C. The Internet is more and more popular.

D. Every computer must have the Internet.

用文字叙述灌酒压盖机的维护保养？

下列关于人体体温描述错误的是（）

A.受体温调节中枢和神经体液因素调控

B.是机体产热和散热过程动态平衡的结果

C.正常值一般为36～37℃

D.不受昼夜、年龄、性别等因素影响

E.正常波动幅度一般不超过1℃

经腹超声测量正常成人前列腺的大小约（）

A.长3cm，宽4cm，厚2cm

B.长4cm，宽3cm，厚2cm

C.长3cm，宽4cm，厚3cm

D.长2cm，宽3cm，厚4cm

E.长2cm，宽4cm，厚3cm

我国规定，闪点高于（）℃的三级易燃液体。

A.50

B.60

C.70