首页
登录
职称英语
Some pessimistic experts feel that the automobile is bound to fall into disu
Some pessimistic experts feel that the automobile is bound to fall into disu
游客
2023-06-25
19
管理
问题
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, however, think the auto is here to stay. They hold that the car will remain a leading means of urban travel in the foreseeable future.
The motorcar will undoubtedly change significantly over the next 30 years. It should become smaller, safer, and more economical, and should not be powered by the gasoline engine. The car of the future should be far more pollution-free than present types.
Regardless of its power source, the auto in the future will still be the main problem in urban traffic congestion (拥挤). One proposed solution to this problem is the automated highway system.
When the auto enters the highway system, a retractable (可伸缩的) arm will drop from the auto and make contact with a rail, which is similar to those powering subway trains electrically. Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer. The computer will then monitor all of the car’s movements.
The driver will use a telephone to dial instructions about his destination into the system. The computer will calculate the best route, and reserve space for the car all the way to the correct exit from the highway. The driver will then be free to relax and wait for the buzzer (蜂鸣器) that will warn him of his coming exit. It is estimated that an automated highway will be able to handle 10,000 vehicles per hour, compared with the 1,500 to 2,000 vehicles that can be carried by a present-day highway. [br] What provides autos with electric power in an automated highway system?
选项
A、A rail.
B、An engine.
C、A retractable arm.
D、A computer controller.
答案
A
解析
事实细节题。文章第4段第1、2句提到,当汽车进入高速公路系统后,一只自动伸缩臂就会从车上伸下来,搭上一根铁轨,这根铁轨类似于为地铁列车提供电能的那些铁轨,一旦汽车连接到rail上,它就可以从中获得电能。因此A正确。
转载请注明原文地址:https://www.tihaiku.com/zcyy/2780322.html
相关试题推荐
[originaltext]ApanelofexpertsappointedbytheWhiteHousehaswarnedth
[originaltext]ApanelofexpertsappointedbytheWhiteHousehaswarnedth
WhyMoneyDoesn’tBuyHappinessWhatdotheexpertssay?[A
WhyMoneyDoesn’tBuyHappinessWhatdotheexpertssay?[A
WhyMoneyDoesn’tBuyHappinessWhatdotheexpertssay?[A
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
[originaltext]EducationexpertssayAfrica’sgrowinghighereducationsyste
随机试题
[originaltext]IntheAmericanfamilythehusbandandwifeusuallyshareimp
Forthispart,youareallowed30minutestowriteashortessaybasedonth
排烟防火阀平时呈开启状态,火灾时当排烟管道内烟气温度达到()时关闭。A.270℃
()是指建筑工程施工质量中不符合规定要求的检验项或检验点,按其程度可分为严重缺
拉斯韦尔五因素传播模式正确的表述为()A.受传者-媒介-信息-传播者-效果
国内个人理财业务迅速发展的原因包括()。A.居民财富的积累 B.理财需求上升
()是我国开发性金融机构。A.中国人民银行 B.国家开发银行 C.中国
与交换机或终端设备相连的两个数字配线架(或其等效设备)间用来传送一种规定速率的数
手术室在绿脓杆菌感染手术后的消毒方法是A.40%甲醛溶液消毒 B.高锰酸钾溶液
下列要求中,属于施工企业取得安全生产许可证应当具备的安全生产条件的有()。A.建
最新回复
(
0
)