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
2023-11-22
25
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 。
转载请注明原文地址:https://tihaiku.com/zcyy/3208066.html
相关试题推荐
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisus
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisus
Thespeakerthinkthecausesofautomobileaccidentsare______[originaltext]
Manyautomobileaccidentswere______carelessdriving.A、attributedtoB、resulte
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
Americaisthelandoftheautomobile.Thiscountryhasonly6percentoft
Americaisthelandoftheautomobile.Thiscountryhasonly6percentoft
随机试题
[originaltext]M:Iseeyouandyourfriendshavebeendecoratingthedormitory.
由于受酸侵蚀,而引起牙齿硬组织进行性丧失的酸蚀症的病因有A.饮食酸 B.酸性药
新病舌绛而颤动并伴高热惊厥可见于A.血虚动风 B.热极生风 C.阴虚动
一般情况下,人体内的血液约有20%贮存在贮血器官里。下列不属于人体贮血器官的是A
下列说法不正确的是()A.经承发包双方确认调整的合同价款,作为追加(减)合同
城乡规划主管部门对某建设工程认定为“违法轻微,尚可采取改正措施消除对规划实施影响
上市公司最近两年连续亏损,证券交易所可暂停其公司债券上市交易。()正确错误
李某由于身份证件遗失,于是持本人身份证复印件和机动车驾驶证件前往期货公司进行开户
关于心理咨询达到职业化阶段的可操作性指标,下列说法中错误的是()。 (A)
共用题干 李某购买一套价格为100万元的住房,法定最低首付款比例为30%,住房
最新回复
(
0
)