问题
选择题
| 将两块表面平滑洁净的铅块压紧后，会使它们结合在一起，并能吊起适当质量的物体，这个实验的实质是证明（ ） A．分子间无间隙 B．分子间的无规则运动减弱 C．分子间存在着斥力 D．分子间的引力作用 |
答案
答案：D
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| 将两块表面平滑洁净的铅块压紧后，会使它们结合在一起，并能吊起适当质量的物体，这个实验的实质是证明（ ） A．分子间无间隙 B．分子间的无规则运动减弱 C．分子间存在着斥力 D．分子间的引力作用 |
答案：D
| 完形填空。 | |||
| Some people say they have an answer to the problems of car crowding and pollution. In many cities, hundreds of people __1__ bikes to work every day. In New York City, some bike riders have even founded a group: Bike for a Better City. They say if __2__ people rode bikes to work, there would be fewer cars and less dirty air. For several years this group had tried to get help for bike riders. They want to have special roads for bikes only, because __3__ bike and cars use the same roads, there may be accidents. Bike for a Better City feel if there were bike roads, more people would use bikes. But __4__ bike roads have been ready yet. Not everyone thinks it is a good__5__. Drivers don't like it, and some shop owners don't __6__ . And most people live __7__ far from the city to travel by bike. Still, __8__ has been done about it. On Saturdays and Sundays, the largest open park in New York is __9__ to cars, and the roads may be used by bikes only, but the group still says this is not enough and goes on fighting __10__ bike roads. | |||
| ( ) 1. A. on ( ) 2. A. fewer ( ) 3. A. until ( ) 4. A. no ( ) 5. A. hope ( ) 6. A. so ( ) 7. A. very ( ) 8. A. everything ( ) 9. A. closed ( ) 10. A. get | B. ride B. less B. for B. only B. way B. and B. quite B. something B. open B. to get | C. by C. many C. when C. some C. help C. neither C. too C. anything C. opening C. ask | D. take D. more D. why D. many D. idea D. either D. so D. nothing D. closing D. to ask |