问题 判断题

ABL电路常利用高压电流IH的取样来控制显像管栅——阴之间的电压。

答案

参考答案:对

阅读理解
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.
问答题

[说明]

某房屋租赁公司欲建立一个房屋租赁服务系统,统一管理房主和租赁者的信息,从而快速地提供租赁服务。该系统具有以下功能:

1.登记房主信息。对于每名房主,系统需登记其姓名、住址和联系电话,并将这些信息写入房主信息文件。

2.登记房屋信息。所有在系统中登记的房屋都有一个唯一的识别号(对于新增加的房屋,系统会自动为其分配一个识别号)。除此之外,还需登记该房屋的地址、房型(如平房、带阳台的楼房、独立式住宅等)、最多能够容纳的房客数、租金及房屋状况(待租赁、已出租)。这些信息都保存在房屋信息文件中。一名房主可以在系统中登记多个待租赁的房屋。

3.登记租赁者信息。所有想通过该系统租赁房屋的租赁者,必须首先在系统中登记个人信息,包括:姓名、住址、电话号码、出生年月和性别。这些信息都保存在租赁者信息文件中。

4.租赁房屋。已经登记在系统中的租赁者,可以得到一份系统提供的待租赁房屋列表。一旦租赁者从中找到合适的房屋,就可以提出看房请求。系统会安排租赁者与房主见面。对于每次看房,系统会生成一条看房记录并将其写入看房记录文件中。

5.收取手续费。房主登记完房屋后,系统会生成一份费用单,房主根据费用单缴纳相应的费用。 :

6.变更房屋状态。当租赁者与房主达成租房或退房协议后,房主向系统提交变更房屋状态的请求。系统将根据房主的请求,修改房屋信息文件。

数据流图1-1和图1-2分别给出了该系统的顶层数据流图和0层数据流图。

使用[说明]中给出的词汇,将数据流图图1-2中的(5)~(8)补充完整。