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问题 单项选择题

Internet提供的最常用、便捷的通讯服务是

A．文件传输(FTP)

B．远程登录(Telnet)

C．电子邮件(E-mail)

D．万维网(WWW)

答案

参考答案：C

解析： 电子邮件(E-mail)是一种用电子手段提供信息交换的通信方式，是Internet应用最广的服务。

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School activities for kids and teens
July is a month of fun-filled activities for kids and teens as long as you know where to find them. When you want some fun activities for July, consider these ideas happening in this month.
Secret of the Dragon
Time     Monday, July 1, 2013,
10:30 am
Cost     Adult: $ 7.40 children (number 15 years): half

Bookings  Phone the booking office:
3403 2578
Address   Brisbane Botanic Gardens
Note      Secret of the Dragon is a magical story about two children who are taken on a dragon ride to expel the universe.

The Search for Life:
Are We Alone?
Time    Thursday, July 4, 2013,
2:00 pm
Cost     Adult: $ 14.50
Children (under 15 years): $ 8.70
Bookings  Phone the booking office:
3403 7689
Address   Brisbane Botanic Gardens
Note      Are we truly alone in space? Is there any life out there? These are the questions asked in this show.
Magic Class
Time     Friday, July 12, 2013,
10:00 am
Cost      Free
Bookings  Please call 3403 8470 to book your place.

Address   Centenary Community hub, 171 Dandenong Rd
Note      Would you like to be a magician? Then join David, the magician, to learn about real magic with playing cards, coins, ring ropes and DIY projects and be able to become the life of the party.

Science with Me:
Making your own guitar
Time      Saturday, July 20,
2013, 3:00 pm
Cost       Free
Bookings   Please phone 3403 1226 to book your place.
Address    10, Egginton Close
Note       Do you want to make a guitar with Katy and her mom? Science with Me is going to be with you. Please remember to bring a piece of wood, a hammer, some rubber bands and some nails with you.
注：universe 宇宙； magic 魔术
根据材料内容选择最佳答案，并将其标号填入题前括号内。
小题1:Alec is strongly interested in space life. He may go to _______.
A．Magic ClassB．Science with Me
C．Secret of the DragonD．The Search for Life
小题2:John and his 10-year-old son want to watch Secret of the Dragon. How much should they pay?
A．$7.40B．$11.10C．$14.80D．$23.20
小题3:Rita plans to join Magic Class. She may learn about _______.
A．real magicB．making coinsC．magic storiesD．holding parties
小题4:According to the next, making a guitar needs the things except _______.
A．a piece of woodB．a hammerC．some nailsD．ring ropes
小题5:What do the four activities have in common?
A．They are all free.B．They happen in the same place.
C．They are all weekend activities.D．They can all be booked by phone.
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多项选择题

环境系统保持稳定需要考虑（）

A、电力和空调保障

B、机房管理制度执行

C、备份冗余准备

D、重点系统的服务连续
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