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
2014-08-25
39
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.
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
主旨大意题。从文章第三段第一句:“…the auto in the future will still be themain problem in urban traffic congestion”可知,作者主要关心的还是如何解决交通堵塞的问题。因此选项C为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/7XxO777K
0
成人本科学位英语
相关试题推荐
Thecarcrashedintoaqueueofpeople,______werekilled.
Themainpointofthepassageis______.Onroadspaintedwithchevrons,driverstendtofeelthat______.
Anaughtyboyhas______thebacktyreofmybike.
"Whyistheuniversitydoingsomuchbuilding?""Thenumberofstudents______thattherearen’tenoughclassrooms."
ThreemengottotheDoverRailwayStationafewminutesafternineo’clockoneevening.Theyaskedaguard,"Whattimeisthen
Thediscoveryofthesetombsis______forscholars’studyingChinesehistory.
Whenclimbingthehill,Johnwasknockedunconsciousbyan______rollingstone.
(Lostinthought),she(didn’thear)thethunder(tobegin)inthemountains(faroff).
AsChristmaswascoming,thetownbegana______clearingonalargescale.
Ifyouassociatewithsuchpeople,I’mafraidyou______serioustrouble.
随机试题
#include
voidprty(int*x)main(){inta=5;prty(&a);printf("%d\n",a);
关于Du血型的理解是
男性,52岁,咳嗽、咳痰10年,1周前受凉后症状加重,查体:两肺散在哮鸣音和湿哕音,胸片示两肺纹理增多紊乱。该病人诊断应首先考虑
下列物质中,属于酚类的是()。[2011年真题]
根据《安全生产法》的规定,用于生产、储存危险物品的建设项目,应当按照国家有关规定进行()。【2005年考试真题】
学习积极性的核心内容是()
2011年,全国研究与试验发展(R&D)经费支出8687亿元,比2002年增长5.7倍,占国内生产总值的比重由1.07%上升到1.84%。2011年,研究与试验发展人员全时当量288.3万人年,比2002年增长1.8倍。技术市场成交额4764亿元,
某甲与某乙有仇,遂寻机报复。一天,某甲得知某乙一人在家,便携带匕首向某乙家走去,途中猛觉不妥,刺伤或刺死某乙自己也要受法律制裁,便返回家中。某甲的行为属于()。
网桥(Bridge)是______的互连设备。
Inrecentdecadeschildspecialistshavetriedmoreandmoretohelpparentswiththeirchildren’sschoolbehavior.Schoolsofe
最新回复
(
0
)