首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Believe it or not,optical illusion (错觉) can cut highway crashes. Japan is a case in point. It has reduced automobile crashes on
Believe it or not,optical illusion (错觉) can cut highway crashes. Japan is a case in point. It has reduced automobile crashes on
admin
2011-01-05
72
问题
Believe it or not,optical illusion (错觉) can cut highway crashes. Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. Bent stripes, called chevrons (人字形) painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down.
Now the American 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. Excessive 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 are the greatest--curves, exit slopes, traffic circles, and bridges. 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 bar. Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane spear to be narrower. The result is a longer lasting reduction in highway speed and the number of traffic accidents.
What does the author say about straight, horizontal bars painted across roads?
选项
A、They are falling out of use in the United States.
B、They tend to be ignored by drivers in a short period of time.
C、They are applicable only on broad roads.
D、They cannot be applied successfully to traffic circles.
答案
B
解析
文章讲到“Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half”,也就是说横的直线只能短时间内有效。因此只能选择B。
转载请注明原文地址:https://kaotiyun.com/show/lYmd777K
本试题收录于:
职称英语卫生类A级题库职称英语分类
0
职称英语卫生类A级
职称英语
相关试题推荐
BIGFOOTTherearesomepeoplewhobelieveintheexistenceexistenceofBigfoot,EXISTa【C1】______ape-likecreatu
BIGFOOTTherearesomepeoplewhobelieveintheexistenceexistenceofBigfoot,EXISTa【C1】______ape-likecreatu
BIGFOOTTherearesomepeoplewhobelieveintheexistenceexistenceofBigfoot,EXISTa【C1】______ape-likecreatu
BIGFOOTTherearesomepeoplewhobelieveintheexistenceexistenceofBigfoot,EXISTa【C1】______ape-likecreatu
FRIENDSHIP0Ibelievethatnothingmattersasmuchashavingacoupleofreallygood00friends.Theyhelpyoufeell
ANEWCRUISESHIPOneofthebiggestpassengershipsinhistory,theIslandPrincess,carriespeopleoncruisesaroundtheCa
ANEWCRUISESHIPOneofthebiggestpassengershipsinhistory,theIslandPrincess,carriespeopleoncruisesaroundtheCa
ANEWCRUISESHIPOneofthebiggestpassengershipsinhistory,theIslandPrincess,carriespeopleoncruisesaroundtheCa
ANEWCRUISESHIPOneofthebiggestpassengershipsinhistory,theIslandPrincess,carriespeopleoncruisesaroundtheCa
ANEWCRUISESHIPOneofthebiggestpassengershipsinhistory,theIslandPrincess,carriespeopleoncruisesaroundtheCa
随机试题
参与Ⅱ型急进性肾炎发病机制的主要是
按造成的人员伤亡或直接经济损失进行分类,一次事故中死亡3人以上(含3人)、10人以下的事故属于()。
某企业用银行存款10万元偿还以前欠其他单位的货款6万元和之前从银行取得的期限为3个月的借款4万元。在借贷记账法下,这笔经济业务的会计分录涉及到()等账户。
在上海证券交易所,债券的佣金收取起点由中国证监会制定。()
他冒着生命危险救了那个小女孩,为我们树立了一个好榜样。
某市为解决某些企业带来的污染问题,做出“减排得力,政府有奖”的决定:规定企业每减排一吨COD(化学需氧量)或二氧化硫,政府即奖励4000元。实施这一政策最可能引起的积极反应是:
二叉树的带权路径长度(WPL)是二叉树中所有叶结点的带权路径长度之和。给定一棵二叉树T,采用二叉链表存储,结点结构为:其中叶结点的weight域保存该结点的非负权值。设root为指向T的根结点的指针,请设计求T的WPL的算法,要求:根据设计思想,采
小李利用PowerPoint制作一份学校简介的演示文稿,他希望将学校外景图片铺满每张幻灯片,最优的操作方法是()
Maybeunemploymentisn’tsobadafterall.Anewstudysaysthathavingademanding,unstableandthanklessjobmaymakeyoueve
Whatanimalsswimfrombirth?Allmammalsexeptmanand______.
最新回复
(
0
)