供消防车取水的消防水池共保护半径不应大于()m。A、150 B、180 C、200_爱下问搜题

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问题单项选择题

供消防车取水的消防水池共保护半径不应大于()m。

A、150

B、180

C、200

D、250

答案

参考答案：A

阅读理解

阅读理解。

Antique door	Solid wood. Includes a coloured glass window near the top of the door. Excellent condition. $300. Phone 9411-2987
Baby bed	Lovely bed, painted white. $310. Also travel bed and car seat. $500 for all, or will separate. Phone 4097-5701
Exercise bike	Near new. Bought for $1200, selling for $600. Call 0289-457-076
Furniture	Dining table and chairs, two double beds, leather sofa and loveseat, chest of drawers, wardrobe, shelf. Come on and make an offer. Must sell this week. 13/453 Crown Rd Fairburn
Golf clubs	Set of eleven. Ladies left hand. Also golf bag, balls. $675. Phone 9765-9975
Computer	Pentium 166, CD-ROM, 32 RAM, 56K modern, sound, speaker, large monitor, mouse, keyboard. $220. Phone 9982-6720
Piano	Kowai Grand GS30, black, excellent action and sound, perfect condition, music books and stool. $1800. Phone 9938-1044
TV	Bony 53cm with surround, remote control, with instruction book. Excellent condition. $300. Phone 2039-6946

1. Which is the cheapest thing for sale?

A. A baby bed.
B. A TV.
C. A piano.
D. A computer.

2. If you want to buy an exercise bike, you can call _______.

A. 0289-457-076
B. 2039-6946
C. 9982-6720
D. 9765-9975

3. If you have only $600, you can buy _______.

A. an antique door and a baby bed
B. a computer

and a piano
C. a TV and an antique door
D. a piano and furniture

单项选择题 B型题

群体中各个体需要量的平均值是（）

A.EAR

B.RNI

C.AI

D.DRI

E.UL