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
考研
Some pessimistic experts feel that the automobile is bound to fall into disuse.They see a day in the not-too-distant future when
Some pessimistic experts feel that the automobile is bound to fall into disuse.They see a day in the not-too-distant future when
admin
2015-06-11
27
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 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 of his coming exit.It is estimated that an automated highway will be able to carry 10,000 vehicles per hour, compared with the 1,400 to 2,000 vehicles that can be carried by a present-day highway.
What is the author’s main concern?
选项
A、How to render automobiles pollution-free.
B、How to make smaller and safer automobiles.
C、How to solve the problem of traffic jams.
D、How to develop an automated subway system.
答案
C
解析
提示出现在第三段。第三段的大意为:不管它的动力来源是什么,汽车在将来仍将是城市交通拥挤的主要问题。一个被提出的解决这个问题的方法是自动化公路系统。文章随后两段探讨了建造自动化公路系统的技术问题以及建造该系统的诱人前景。许多粗心的考生会误选D项,主要是没有看清选项中subway一词。
转载请注明原文地址:https://kaotiyun.com/show/7oQi777K
0
在职申硕(同等学力)英语
相关试题推荐
Forthispart,youareallowed30minutestowriteacompositionofnolessthan100wordsunderthetitleofTheProblemsIHav
Despitethedangersanddifficultiesinfightingwiththeterrorists,thesoldierswereresolute.
ShouldEnglishclassesbecompulsoryattheelementaryorprimaryschoollevelincountrieswhereitisnotthenativelangue?
Agoodemployergiveshintstohisorheremployeeswithoutinterferingwiththeircreativity.
Ihadbeenauniversitystudentforthreeyears,butnotuntilthisafternoonhadIfeltthethrillof______
Unemploymentseemstobethe______socialprobleminthisareaandmayunderminesocialstability.
Fromchildhoodtooldage,wealluselanguageasameansofbroadeningourknowledgeofourselvesandtheworldaboutus.When
Inthecourseofharshtraining,theathletesarefrequentlytoldtoholdoutuntiltheywinthechampionship.
Ifyouhaven’theardorseenanythingaboutRoadRageinthelastfewmonths,you’veprobablybeenavoidingthemedia.Therehav
Thejudgeremainedsoberdespitethelawyer’sludicrousattempttoprovethedefendant’sinnocence.
随机试题
A.表皮样囊肿B.腱鞘囊肿C.皮脂腺囊肿D.蔓状血管榴E.脂肪瘤发生于皮下组织内、呈分叶状的是【】
Eatinginspaceisdifferentfromeatingonearth.Thefoodthatastronautscarrywiththemdoesnotlooklikethefoodyoueat.
非放射专业学生教学期间,有效剂量当量不得大于
A.急性胎儿窘迫B.轻度新生儿窒息C.慢性胎儿窘迫D.重度新生儿窒息E.新生儿产伤胎儿娩出后1分钟仅有心跳而无呼吸,Apgar评分0~3分,应考虑
下列哪些细胞表达高亲和力的FcεRⅠ
下列影响建设工程项目质量的环境因素中,属于劳动作业环境因素的有()。
甲公司2015年分别销售A、B产品1万件和2万件,销售单价分别为100元和50元。甲公司向购买者承诺在产品售后2年内免费提供保修服务,预计保修期内将发生的保修费在销售额的2%~8%之间(该区间内各金额发生的可能性相同)。2015年实际发生保修费1万元,20
HowtoapproachListeningTestPartThree•InthispartoftheListeningTestyoulistentoalongconversationorinterviewan
WritingPublicSpeeches1.Speechesthatinform■Informativespeeches:toshow,【T1】______andinform【T1】______■Pos
Oceanographyhasbeendefinedtheapplicationofall【S1】______sciencestothestudyofthesea.Beforethenine
最新回复
(
0
)