首页
登录
职称英语
Some pessimistic experts feel that the automobile is bound to fall into disus
Some pessimistic experts feel that the automobile is bound to fall into disus
游客
2023-12-18
34
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. One proposed solution to this problem is the automated highway system.
When the auto enters the highway system, a retractable 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 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
根据常识我们可以推断,“the retractable arm”,只是用来连接汽车与“rail”的工具,起传导“electric power”的作用,所以,正确答案应该是[A]。由第二段中的“…should not be powered by the gasoline engine”和第四段中的“Once attached to the rail,the car will become electrically powered from the system”可以看出在“automated highway system”中提供动力的不是“engine”,所以,[B]是错误答案。根据上面的讨论我们可以看出[C]也不是正确答案。根据第四段最后一句话“The computer will then monitor all of the car’s movements.”我们可以看出“a computer controller”只是起监视汽车运动的作用,不给其提供动力。所以,[D]也不正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3284057.html
相关试题推荐
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisus
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisus
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisus
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisus
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisus
[originaltext]ArmyexplosiveexpertsinNorthernIrelandhavecarriedouta
Chinaisnowfacedwithadilemma.Wearepushingupsalesofautomobilesin
[originaltext]China’sautomobilerevolutionisaccelerating;(8)despiteef
WhichMidwesterncityoftheUSAistheautomobilecapitaloftheworld?A、Chicag
WhichMidwesterncityoftheUSAistheautomobilecapitaloftheworld?A、Chicag
随机试题
Readthearticlebelowaboutdoingbusinessonline.Choosethebestwordorphra
TheLondonterroristattacksonJuly7andJuly21changedBritishPrimeMini
HowtoTametheAngerMonsterThreefactorscausing
Therewereinnsthroughouttheancientcivilizedworld,strategicallyplaced
下列有关钢筋混凝土结构的论述中,错误的是()。A.柱的主筋的主要作用是抵抗弯
主动脉瓣第二听诊区适合听诊A、舒张期杂音 B、连续性杂音 C、第一心音分裂
思想品德教育的最终目的是培养学生良好的__________。A.道德认识 B.
某股权投资基金拟投资A公司,A公司的管理层承诺投资当年的净利润为1.2亿元,按投
下列关于初步可行性研究的说法,错误的是()。A.初步可行性研究报告是项目决策的
某水库建坝前,坝址处十年最枯月流量为300m3/s,河流最小生态流量120m3/
最新回复
(
0
)