首页
登录
职称英语
Why does the electric car seem to be the best alternative so far? [br] [origina
Why does the electric car seem to be the best alternative so far? [br] [origina
游客
2024-02-15
6
管理
问题
Why does the electric car seem to be the best alternative so far? [br]
Are electric cars the way of the future?Automobile manufactures are under pressure to develop cars that do not pollute.One powerful motive is a California law requiring that by the year 2020 ten percent of new car sells in the state be so called zero-emission vehicles.These cars must put no pollutants whatsoever into the at-mosphere.
California is a huge market for the automobile companies,so they are working hard to meet these standards. So far the electric car seems to be the best alternative.So the big advantage of electric cars is that they don’t pollute.However they will be in competition with gas-powered cars and that’s where the weaknesses come out.The big problem is that the batteries that power electric cars weigh a lot relative to the amount of power they deliver.For instance,in one prototype electric car,the batteries weighed 400 kilograms.And they provide enough energy to go 250 kilometers before recharging,which takes eight hours.Compare that to a moderately fuel-efficient conventional car,it can go 600 to 700 kilometers on a tank of gas and refilling takes just minutes.If there are other drains on an electric car’s batteries besides the motor,headlights,air-conditioning or a heater,its already limited range will be significantly reduced.So automobile engineers are trying to make more powerful batteries that would increase the cars’range and make them more attractive to buyers.
选项
A、Improve the batteries of electric cars.
B、Increase the number of electric cars.
C、Design a new device for electric cars.
D、Look for new ways to improve safety.
答案
A
解析
短文结尾处说,汽车工程师们正试图开发更强大的电池以提升汽车的行驶里程,从而使电动汽车更受消费者欢迎,故A正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3452942.html
相关试题推荐
[originaltext]Isittruethatyouwillfeelveryexcitedandhappywhenyou
[originaltext]Isittruethatyouwillfeelveryexcitedandhappywhenyou
[originaltext]Thunderstormsaretheleastdangerousandleastviolentofall
[originaltext]Thunderstormsaretheleastdangerousandleastviolentofall
[originaltext]W:CanIhelpyou?M:Yes,I’dliketoreadsomearticlesthatar
[originaltext]W:CanIhelpyou?M:Yes,I’dliketoreadsomearticlesthatar
[originaltext]Frozenforeverintimearememoriesofwirerimmedglassesan
[originaltext]Frozenforeverintimearememoriesofwirerimmedglassesan
[originaltext]Duringthesummeryoushouldbeevenmorecarefulthanusual
[originaltext]Duringthesummeryoushouldbeevenmorecarefulthanusual
随机试题
TheUniversityBookstoreisaserf-supportinguniversity-ownedorganization,
[originaltext](5)AnewstudyfindsthatheavyInternetusemaybeconnected
国家电网有限公司坚决贯彻党中央、国务院决策部署,全力做好庆祝建党100周年电力
极坐标法是目前优先选用的隧道超欠挖测量方法。()
下列食管癌的分型,错误的是()A.浸润型食管癌 B.增生型食管癌
Thechangeinthatvillagewasmiraculou
某两层办公建筑每层划分为一个防火分区,其防烟楼梯间和前室均设有机械加压送风系统,
下列各项不属于协助处理服务对象与医疗系统的关系的是()。A.提供相关的医疗资讯
山区公路中,雨期路基施工地段不宜选择()。A.砂类土地段 B.路堑的弃方
某工程施工中,因脚手架坍塌导致800万元的直接经济损失,则下列说法正确的有()
最新回复
(
0
)