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问题 填空题
函数y=
3x-2008
5x+2009
的值域是______．
答案

y=

3x-2008
5x+2009
=
3
5
(5x+2009)-2008-
3×2009
5
5x+2009
=
3
5
-
2008+
3×2009
5
5x+2009

∵

2008+
3×2008
5
5x+2009
≠0

∴

3
5
-
2008+
3×2009
5
5x+2009
≠
3
5

函数y=

3x-2008
5x+2009
的值域是 {y∈R|y≠
3
5
}．

故答案为：{y∈R|y≠

3
5
}．

阅读理解
School Activities for Kids and Teens
January 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 January, think about these ideas happening in this month.
Secret of the Dragon

Time: Mon., Jan. 1, 10:30 am
Cost: Adult: $7.40
Child (under 15): half
Tel.: 3403 2578
Add.: Brisbane Botanic Gardens
Note: Secret of the Dragon is a magical story about two children ride a dragon to explore the ocean.
    The Search for Life

Time: Thurs., Jan. 4, 2:00 pm
Cost: Adult: $14.50
Child (under 15): $8.70
Tel.: 3403 7689
Add.: 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: Fri., Jan. 12, 10:00 am
Cost: Free
Tel.: 3403 8470 to book your seat beforehand
Add.: Centenary Community
Hub, 171 Dandenong Road
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: Sat., Jul. 20, 3:00 pm
Cost: Free
Tel.: 3403 1226 to book your
seat beforehand
Add.: 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.
小题1:If you want to make a guitar, you can call ________.
A．3403 8470B．3403 1226 C．3403 7689D．3403 2578
小题2:John and his 10-year-old son want to watch Secret of the Dragon. They will pay ________.
A．$7.40B．$11.10 C．$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: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
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单项选择题

Ⅰ号泵采用的拨叉式油量控制机构，它由（）、拨叉、调节臂等零件所组成。

A.拉杆

B.柱塞

C.柱塞弹簧

D.回油管
查看答案