问题 单项选择题

设当前工作区的数据库文件有8个字段,共有10条记录,执行命令
COPY TO NEW STRUCTURE EXTENDED
后,将产生一个名为NEW.DBF的数据库文件,则其字段数为

A.4

B.5

C.8

D.10

答案

参考答案:A

解析: 本题考查数据库文件结构的复制。使用命令COPY TO<文件名 >STRUCTURE EXTENDED可以将打开的数据库文件的结构作为数据库文件记录复制到新生成的数据库文件中,无论原数据库有多少个字段,新生成的数据库描述文件的字段数都为4,故选项A为正确答案。

阅读理解

                                                              Summer Holiday Fun 2010!

     The summer holidays are upon us again.Here is our guide to summer holiday fun in Peterborough!

     Peterborough Museum

     The Age of the Dinosaurs is the museum's main attraction this summer. Get up close to prehistoric

creatures via some great handson exhibits! Watch out for monsters lurking around every ember! The

museum is open from 10:00 am to 5:00 pm Monday to Saturday,and from 12:00 pm to 4:00 pm on

Sundays in August.

     Call 01733 864663 for details.

     Saxon Youth Club

     School holiday fun: Young people aged 13~19 will be able to produce their own music, compete in

sports activities, or try their hand at cooking at Saxon Youth Club,Saxon Community Centre, Norman

Road, Peterborough every Monday and Wednesday from 3:00 pm. PLUS an aeroball tournament will

take place on Thursday, 12th August between 3:30 pm and 6:30 pm.

     Call 01353 720274 for details.

     Houghton Mill

     Through the Looking Glass-a new production of the family favorite on Monday 30th, August.Bring

rugs or chairs to sit on and a picnic if you wish to eat during the play. Gates open 5:30 pm, performance

6:30 pm~8:30 pm. Tea room will be open until the end of the interval.Adult £10. Child £7.Family £

20.

     Booking advisable on 0845 4505157.

     Farmland Museum and Denny Abbey

     Farmland Games: From Wellie Wanging to Pretend Ploughing matches, come and join the Farmland

Team. Collect your sporting stickers and create a colorful rosette that is fit for a winner! No need to

book, just turn up between 12:00 pm and 4:00 pm on Thursday, 19th August.Suitable for children aged

four and above, each child should be accompanied by an adult and all activities are included in the

normal admission price. Tickets Cost: £7 per child.

     For further information,call 01223 810080.

1. If you are interested in cooking, you can go to________.

A. Peterborough Museum  

B. Houghton Mill

C. Saxon Youth Club  

D. Farmland Museum

2. You want to watch the new play with your parents, so it will cost you________.

A. £7  

B. £17  

C. £27  

D. £20

3. Which of the following activities needs parents' company?

A. Playing farmland games.

B. Watching the new play.

C. Competing in sports activities.

D. Visiting the dinosaur exhibition.

4. If Tom comes to Peterborough Museum on August 19, he will have________to choose from for

himself.

A. one activity  

B. two activities

C. three activities  

D. four activities

单项选择题