有一段圆柱体，由于长度不够长，又接上了5分米，它的表面积增加了62.8平方分米。
题型：填空题
问题：
有一段圆柱体，由于长度不够长，又接上了5分米，它的表面积增加了62.8平方分米。圆柱体的底面半径是（ ），底面积是（ ）。
题型：填空题
阅读理解
Busy senior managers need no longer waste time in showering themselves-an Australian company has
invented a suit that can be worn while they wash.
The suit has been specially designed so that it can be cleaned under the showerhead.There is no need
for soaking (浸泡), dry cleaning-or even soap.
The Japanese market has taken a liking to the "shower suit", described as "revolutionary" by its owner Australian Wool Innovation (AWI), which is the research and marketing body that represents Australian
woolgrowers.Orders have been placed for 170,000 of the woolen suits.
The suit could be worn in the shower, although it was probably better to hang it on a clothes hanger
and carry it instead, AWI corporate affairs spokesman Stephen Feighan said."The idea is that you hang it
up and then...you give it a spray (喷雾), and it's dry the next morning, " Mr Feighan said.
A Japanese researcher working for AWI invented the suit by combining three technologies.The secret
is the best lining (内衬), which allows the suit to dry quickly.The shower suit attracted busy corporate
people, particularly those who often traveled or stayed up late, Mr Feighan said.The airline industry was
also interested.
Mr Feighan confessed he had not worn one of the suits yet, or tried to wash it in the shower, because
they cut to fit Japanese figures.
AWI believes that the shower suit will spread from the Japanese market through Europe and India
.Mr Feighan hoped the suit, made from local wool, would be available in Australia in 12 to 18 months'
time.
1. What is the writing purpose of the article?
A. To introduce a newlydesigned shower suit.
B. To help the white collars arrange their life more sensibly.
C. To provide suggestions on saving time in bath.
D. To praise AWI for its important achievement.
2. Which is true about the suit according to the passage?
A. It can spare the owner's trouble of soaking, dry cleaning and applying soap.
B. It is of the quality of fast dry for its best cloth.
C. It is not suitable for hanging.
D. It has attracted more orders than any other suit.
3. The suit draws the attention from all the following groups EXCEPT________.
A. corporate people who are always on the go
B. people on occasional business trips
C. the airline industry
D. people burning the mid
night oil
4. Which of the following has much to do with Mr Feighan?
A. The invention of the suit.
B. The tryon of the suit.
C. The combination of the three technologies on the suit.
D. The popularization of the suit and best wishes for it
5. It can be inferred from the passage that________.
A. Australians prefer foreign markets to the domestic one
B. wool is the most favorite material for clothing
C. westerners have different body sizes and figures from easterners
D. Australia's economy will not recover within a year