先天性髋关节脱位成年后最常见的并发症是A．再脱位B．双髋关节退变性关节病C．肌肉挛缩

Would you like to have an electric car? Do you know this kind of quiet and clean cars run on electricity(电)?

In the future, more and more people will have cars, so the cars will be in great need. But the oil won’t keep up with the number of cars on the road. So the price of oil will go up.

Electric cars aren’t perfect just yet. It can take eight hours to charge(充电) a car for only 100 miles of driving. How far that car travels depends on the weather and traffic.

Price is a problem, too. Electric cars cost much more than cars using oil. The good news is that electric-car technology(技术) is getting better. As it does, the prices of this kind of cars are going down.

To charge the car, the US Department of Energy is paying for at least 10,000 charging stations around the country. And it will cost about three dollars for each charge.

Now carmakers are looking for other ways to make the car cheaper. Then more people will use electric cars, and we’ll have a clean and nice world in the future.

小题1: Why will the cars be in great need in the future?

小题2: How long does it take to charge an electric car for only 100 miles of driving?

小题3: Are electric cars cheaper than cars using oil at present?

小题4: How much should people pay for each charge?

小题5:What will the world be like if most people use electric cars?

戏曲旦行“踩跷”始于（）。

A．侯俊山

B．十三旦

C．王瑶卿

D．魏长生

A man of words and not of deeds _____ a garden full of weed.[ ]

A. like

B. likes

C. is like

D. are like

关于CD-Maker Pro刻录软件，下面说法错误的是（）。

A、它是美国NTI（Newtech InfosystemsInc）公司开发的CD刻录软件

B、它可以刻录数据光盘

C、它可以刻录多模式CD

D、它不支持光盘对拷

在液货船上使用的和拟用于危险区域的安全灯应为（）.

A.普通型

B.照明型

C.防爆型