长镜头的基本方式？（举例）

胸椎的特点具有（）。

A、横突肋凹

B、横突孔

C、棘突宽短呈板状

D、棘突末端分叉

E、椎孔呈三角形

假设在金本位制下美国外汇市场上，美元与英镑的含金量：1美元=23.22格令纯金，1英镑=113.0016格令纯金，英美两国之间运送黄金的费用为每英镑0.03美元，则黄金的输出点为( )

A．4.8065

B．4.8565

C．4.9165

D．4.9565

阅读理解。

    You've just got a new computer and you are delighted with it. It is doing everything you want it to do.

But what are you going to do with your old computer?

    In the past consumers have often paid high prices for their old computers, but how much do you think

these computers are worth now? Few people want to buy a computer which has become out-of-date or has

been replaced by a newer mode. Unfortunately, the only thing you can do with a computer which you have

had for five or six years is to throw it away with your other garbage.

    What do many people do when they try to sell their old computers? Foolishly, they take into account its

original cost and then reduce the price according to the age of the computer rather like a second-hand car.

They forget that new computers are becoming cheaper every day, making old computers almost worthless.

In 1985, for example, a good computer cost over $4,000. Then years later its owner would be lucky to get

$ 400.

    One well-known computer magazine recently made a list of 10 things to do with an old computer. One

suggestion was to give it away to charity or give it as one of the small prizes in a competition. The final

suggestion was to keep it in a safe place and hope that it would become a collector's item in 15 or 20 years-

though the article in the magazine admitted that in 15 or 20 years, there may be so many old computers that

they will all be worthless.

1. What does the underlined part mean? [ ]

A. Fashionable

B. No longer fashionable

C. Second hand

D. Worthless

2. The best way to do with an old computer is _____. [ ]

A. to throw it away

B. to evaluate it and sell it

C. to donate it to the poor

D. keep it at home

3. How many ways are mentioned in the passage to do with an old computer? [ ]

A. 10

B. 12

C. 5

D. 4

4. The title of the passage could be _____. [ ]

A. Throw Away Your old computer

B. How Much Does An Old Computer Cost Now?

C. Your Old Computer

D. Useless Computers

5. What can you infer from the passage? [ ]

A. The old computer will be of great value if kept for years

B. People can get much money by selling old computers

C. You can get a used car at a very low price

D. To deal with old computers has became a common problem.

语句ofstream f ("SALARY.DAT"，ios_ base:: app)；的功能是建立流对象f，并试图打开文件 SALARY.DAT 与f关联，而且( )。

A．若文件存在，将其置为空文件：若文件不存在，打开失败

B．若文件存在，将文件指针定位于文件尾；若文件不存在，建立一个新文件

C．若文件存在，将文件指针定位于文件首；若文件不存在，打开失败

D．若文件存在，打开失败：若文件不存在，建立一个新文件