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问题 单项选择题

排尿不畅，尿流变细，排尿无力，甚至引起急性或慢性尿潴留是哪种疾病的临床表现（）

A、尿路感染

B、尿潴留

C、 * * 狭窄

D、引流不畅

E、膀胱结石

答案

参考答案：C

单项选择题

Welcome to the Grand Center--the place for all the family


If you like sports, go to the sports center on the twenty-eighth floor. On the twenty-eighth floor, we have a ping-pong room. If you like films, go to the twenty--seventh floor and watch a film in the ABC Cinema.
If you like to eat, there are a lot of places in the Grand Center for you to go to. You can try Wonderful Restaurant. That’s a new restaurant on the twenty-first floor. Crazy Town ( a Sichuan restaurant)is on the twenty-third floor and there’s an American restaurant on the twenty-sixth. But don’t worry, children ! If you like other kinds of foreign food, you can go to the coffee shop on the first floor. It’s really great.
If you like to shop, there are the twelfth to the nineteenth floors. On the twelfth floor, for example, there’s AST World for computers and computer games. There’s a big store on the fifteenth floor for radios, TVs and CDs. And the nineteenth floor has sports stores and a supermarket.

Where can you have some food
[A] On the twenty-second floor．
[B] on the twenty-third floor．
[C] On the twenty-fourth floor．

And there’s Rose Hall for all you dance people ( for people over 14 years old). That’s on the top floor, of course. You can dance and sing all night.
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选择题

若方程mx2+3x-4=3x2是关于x的一元二次方程，则m的取值范围是（　　）

A．m≠3

B．m≠1

C．m≠0

D．m≠2
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