首页
登录
职称英语
[originaltext] Are electric cars the wave of the future? Automobile manufact
[originaltext] Are electric cars the wave of the future? Automobile manufact
游客
2024-02-25
31
管理
问题
Are electric cars the wave 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 2000, 10% of new car sales in the state be so-called "zero emission vehicles". These cars must put no pollution, whatsoever, in the atmosphere.
California is a huge market for the automobile companies. So they are working hard to meet the standards. So far, the electric car seems to be the best alternative. So the big advantage of the electric cars is that they don’t pollute. However, there will be a 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 weigh 400 kilograms and they provide enough energy to go 250 kilometers before recharging, which takes 8 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 the electric cars’ batteries besides the motor, headlights, air-conditioning or heater, its already limited range would 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、They are cheaper.
B、They do not pollute as much.
C、They are simpler to drive.
D、They are faster.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3481408.html
相关试题推荐
[originaltext]Thailandhassomespecialcustomsandhabits.Menendwom
[originaltext]Thailandhassomespecialcustomsandhabits.Menendwom
[originaltext]Thailandhassomespecialcustomsandhabits.Menendwom
[originaltext]M:Goodafternoon.W:Goodafternoon.ThisistheHotelBookingS
[originaltext]W:Longtimenosee!Whathaveyoubeenuptolately?M:Nogood,
[originaltext]W:Longtimenosee!Whathaveyoubeenuptolately?M:Nogood,
[originaltext]Insocietiesinwhichindividualschoosetheirownpartners,
[originaltext]Therehavealwaysbeendisabledchildren.Longbefore,people
[originaltext]Therehavealwaysbeendisabledchildren.Longbefore,people
[originaltext]W:Hi,Larry,areyouwaitingtoseeProf.Jameson,too?M:Yeah,
随机试题
Icanthrowtheball(far)______thanyoucan.farther在本句中,因为存在一个than引导的状语从句表示比较
对健康管理特点描述最准确的是()A.标准化、量化、个体化、系统化 B.标准
根据私募基金投资运作相关规定,属于私募基金管理人、私募基金托管人、私募基金销售机
对肺炎链球菌典型临床表现叙述错误的是A.咳嗽、咳铁锈色痰 B.起病急骤、急性病
如果Flash时间轴的帧上显示一个空心圆圈,表示()。A.此为“空白关键帧”
因体质虚弱所致的虚性晕厥除主穴外,应选用A.气海、关元 B.风池、肾俞 C.
注射硫酸镁A.反射性兴奋呼吸中枢 B.产生外周性肌肉松弛 C.阻断多巴胺受体
一些困难群体由于家庭贫困从而不愿参加社区的公共活动,他们的朋友圈逐渐缩小,逐渐脱
根据公司法律制度的规定,下列关于股东知情权的表述中,不正确的有()。A.有限责
根据民用建筑的规模大小分类,下列建筑物中,属于大型性建筑的是()。A.学校
最新回复
(
0
)