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
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future whe
Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future whe
admin
2016-04-30
32
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.
In an automated highway system, all the driver needs to do is______.
选项
A、keep in the right lane
B、wait to arrive at his destination
C、keep in constant touch with the computer center
D、inform the system of his destination by phone
答案
D
解析
事实细节题。最后一段首句提到,司机将通过电话发出指令,把目的地输入系统。由此可见,司机可以使用电话来告知系统他的目的地,故选D。A、B、C在文中没有提及。
转载请注明原文地址:https://kaotiyun.com/show/Cqe7777K
0
大学英语四级
相关试题推荐
WhenMomandDadGrowOldA)Theprospectoftalkingtoincreasinglyfragileparentsabouttheirfuturecanbe"oneofthemostd
Walking,ifyoudoitvigorouslyenough,istheoverallbestexerciseforregularphysicalactivity.Itrequiresnoequipment,e
Walking,ifyoudoitvigorouslyenough,istheoverallbestexerciseforregularphysicalactivity.Itrequiresnoequipment,e
Walking,ifyoudoitvigorouslyenough,istheoverallbestexerciseforregularphysicalactivity.Itrequiresnoequipment,e
UniversitiesBranchOutA)Asneverbeforeintheirlonghistory,universitieshavebecomeinstrumentsofnationalcompetitionas
Adecadeago,theideathattheplanetwaswarmingupasaresultofhumanactivitywaslargelytheoretical.Weknewthatsince
WhenMomandDadGrowOldA)Theprospectoftalkingtoincreasinglyfragileparentsabouttheirfuturecanbe"oneofthemostd
WhenMomandDadGrowOldA)Theprospectoftalkingtoincreasinglyfragileparentsabouttheirfuturecanbe"oneofthemostd
TheincreasingAmericanizationofJapaneselifeisevidentinmanyways.Onesuchwayisthegrowingpopularityofcreditcards.
随机试题
用埋弧自动焊单面焊工艺焊接6~20mm厚的钢板的平对接接头可采用()。
A.载药上行B.宁心安神C.健脾助运D.宣肺利气酸枣仁汤中配伍茯苓的作用是
男,32岁。因上前牙不美观要求修复。检查:扭转近90°,且伴有唇侧倾斜。X线片示牙髓正常,牙根形态正常,牙槽骨轻度吸收,牙龈红肿,探易出血。对该患者修复前的准备不包括()
符合下列条件的法典是:()①中国历史上最后一部封建成文法典②中国传统封建法典的集大成者③充分体现了汉唐以来确立的封建法律的基本精神、主要制度④体制为名例律、吏律、户律、礼律、兵律、刑律、工律七部分
根据《保险法》的规定,保险事故发生后,对于保险合同各方的责任,下列表述正确的是()。
关于柔性管道质量检验方法、标准及超标处理的说法,正确的是()。
债务重构通常发生的原因有()。
下列属于浙江省的民间音乐的有()。
下列关于数据库设计的叙述中,正确的是
1.打开工作簿文件EX10.XLS(内容如下),将工作表sheetl的A1:D1单元格合并为一个单元格,内容居中;计算“金额”列的内容(金额=数量×单价),将工作表命名为“购买办公用品情况表”。2.打开工作簿文件EX10.XLS,对工作表“购买办公用
最新回复
(
0
)