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
2011-01-21
12
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
转载请注明原文地址:https://kaotiyun.com/show/5J3d777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
Specialisationcanbeseenasaresponsetotheproblemofanincreasingaccumulationofscientificknowledge.Bysplittingupt
Specialisationcanbeseenasaresponsetotheproblemofanincreasingaccumulationofscientificknowledge.Bysplittingupt
Specialisationcanbeseenasaresponsetotheproblemofanincreasingaccumulationofscientificknowledge.Bysplittingupt
Specialisationcanbeseenasaresponsetotheproblemofanincreasingaccumulationofscientificknowledge.Bysplittingupt
Cyberspace,datasuperhighway,multi-media—forthosewhohaveseenthefuture,thelinkingofcomputerstelevisionandtelephone
Specialisationcanbeseenasaresponsetotheproblemofanincreasingaccumulationofscientificknowledge.Bysplittingupt
Specialisationcanbeseenasaresponsetotheproblemofanincreasingaccumulationofscientificknowledge.Bysplittingupt
Itwasnot"thecometofthecentury"expertspredicteditmightbe.However,Kohoutekhasprovidedabonanzaofscientificinfor
Placingahumanbeingbehindthewheelofanautomobileoftenhasthesamecurioseffectascuttingcertainfibresinthebrain.
Itisoftenobservedthattheagedspendmuchtimethinkingandtalkingabouttheirpastlives,21aboutthefuture.Theseremin
随机试题
Lookatthegraphic.WhatdoesthespeakersayabouttheTandoori-SpicedChicken?
65岁男性,2小时前被汽车撞伤右髋部,疼痛,右下肢不能负重。入院后查体:右大转子上移2.0cm,右下肢真实长度与左下肢相同,右下肢相对长度较左下肢短缩2.0cm。右下肢活动受限,畸形。该病人不能出现的病情是
以下符合癫痫持续状态的是
下列系统中,属于空气—水系统的有( )。
按照规定,有限责任公司设立时全体股东的货币出资金额不得低于有限责任公司注册资本的()。
某单位订阅了30份学习材料发放给3个部门,每个部门至少发放9份材料。问一共有多少种不同的发放方法?
在正偏态分布中,平均数、众数、中数之间的关系是_____________。
视图设计一般有3种设计次序,下列不属于视图设计的是______。
Whatcanweinferfromthispassage?
Thenewdictionary______him15dollars.
最新回复
(
0
)