下载APP
【单选题】
(三)
(三)The American Automobile Association Foundation for Traffic Safety plans to（）.
A．try out the Japanese method in certain areas
B．change the road signs across the country
C．replace straight, horizontal bars with chevrons
D．repeat the Japanese road patterns
B．change the road signs across the country
C．replace straight, horizontal bars with chevrons
D．repeat the Japanese road patterns
A.
Believe it or not, optical illusion can cut highway crashes.
B.
Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75 percent using a optical illusion. But stripes, called chevrons, painted on the roads make drivers think that they are driving faster than: they really are, and thus drivers slow down.
C.
Now the American Automobile Association Foundation for Traffic Safety in Washington D. C. is planning to repeat Japan’s success. Starting next year, the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes.
D.
Excessive(too great) speed plays a major role in as much as one fifth of all fatal traffic accidents, according to the foundation. To help reduce those accidents, the foundation will conduct its tests in areas where speed-related hazards(er) are the greatest curves, exit slopes, traffic circles, and bridges.
E.
Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bars.
F.
Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane appear to be narrower. The result is a longer lasting reduction in highway speed and the number of traffic accidents.
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Mathematical ability and musical ability may not seem on the surface to be connected, but people who have researched the subject—and studied the brain—say that they are. Three quarters of the bright b...
A.
It requires formal training.
B.
It is often enjoyed by those with strong analytical ability.
C.
It is disliked by blacks.
D.
It is more difficult to learn than classical music.
【单选题】The Attitude For Computers As Dr. Samuel Johnson said in a different era about ladies preaching, the surprising thing about computers is not that they think less well than a man, but that they think a...
A.
Right
B.
Wrong
C.
Not Mentioned
【单选题】Knitting My mother knew how to knit (编织), but she never taught me. She assumed, as did many women of her generation, that knitting was no longer a skill worth passing down from mother to daughter. A c...
A.
speed up
B.
give up
C.
slow down
D.
build up