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
A、Automobile safety. B、Increasing fuel efficiency. C、California’s pollution laws. D、Electric-powered cars. DWhat is the passage
A、Automobile safety. B、Increasing fuel efficiency. C、California’s pollution laws. D、Electric-powered cars. DWhat is the passage
admin
2009-04-23
45
问题
Our electric car is the way of the future. Automobile manufactures are under the pressure to develop cars that do not pollute. One powerful motive is a California law requiring that by the Year 2010, 30% of the new car sales of the state be so-called zero emission vehicles. These cars must put no pollutants whatsoever into the atmosphere. California is a huge market for the automobile companies. So they are working hard to meet this standard. So fax the electric car seems to be the best alternative. The biggest advantage of electric cars is that they don’t pollute. However, they will be in competition with gas powered cars. That’s where the witnesses come out. The big problem is that the batteries in electric cars weigh a lot relative to the amount of power they deliver. For instance in one electric car the batteries weigh four hundred kilograms and they provide enough energy to go 250 km before recharging, which takes 8 hours. Compare that to a moderately fuel efficient conventional car; it can go 400-700 km on a tank of gas. And refilling takes just minutes. If there are other drains on an electric car’s batteries besides a motor, headlights, air-conditioning or a heater, its already limited range would be significantly reduced. So automobile engineers are trying to make more powerful batteries that would increase the car’s range and make them more attractive to buyers.
选项
A、Automobile safety.
B、Increasing fuel efficiency.
C、California’s pollution laws.
D、Electric-powered cars.
答案
D
解析
What is the passage mainly about?
转载请注明原文地址:https://kaotiyun.com/show/2dZK777K
0
大学英语六级
相关试题推荐
A—assemblylineJ—safetybootsB—packerK—shippingclerkC—forkliftL—timecardD—explosivematerialsM—warehouseE—fireext
A—StockexchangeK—StocktransferB—BuyingandsellingstockL—StockcompanyC—StockmarketM—SharecapitalD—Currentprices
Byaskingappropriatequestions,youareshowingtheemployerthatyou’reinterestedinbeingpartoftheircompany.
A、Hedoesn’tlikethecolor.B、Hedoesn’tlikethestyle.C、Itistoosmall.D、Itisofpoorquality.C题干问男士要退换衬衫的原因。通过对话内容可知女士是
A、Breakfast.B、Dinner.C、A5-dollargiftcard.D、Busservicetotheairport.A对话中,男士要订房间,女士在询问了具体情况后报出价格:双人房1晚80美元,包括早餐,所以确定A)“早
WhenindustrybecamemoreimportantthanagricultureinthelifeofAmericanpeople,familiesbecamesmallerthaneverbefore.
Lindafeelsexhaustedbecauseshe_____somanyvisitorstoday.
Ithinkit’shightimewe_____strictmeasurestostoppollution.
NoticeOverthepastmonththePersonnelOfficehasreceivednumerouscallsabouttheapprovalprocessforusingthenew"fl
A、$80.B、$60.C、$90.D、$15.BM:Whichcoatdidyoufinallydecidetobuy?W:Well,Iwouldhavelikedtobuythegreenone,but
随机试题
关于局部注射肾上腺皮质激素,错误的描述是
根据我国“医院获得性支气管肺部感染诊断标准”,痰定量培养分离的致病菌或条件致病菌浓度符合何种条件,可认为是肺部感染的病原体()
锚具在静载锚固性能试验过程中,若钢绞线相对位移△a、夹片相对位移△b与预应力筋的受力增量不成比例,可说明锚具已失去可靠的锚固能力。()
电阻甲的阻值为200kn,电阻乙的阻值为2.3MΩ,两者阻值之和等于()。
国家机器的形成是警察产生的()。
行政强制执行是指公民、法人或其他组织不履行法律规定的义务或行政机关依法做出的行政处理决定中规定的义务,有关国家机关依法强制其履行义务或达到与履行义务相同状态的行为。下列不属于行政强制执行的是()。
设当x→0时,,则k=__________。
十进制数221用二进制数表示是
Thereasonwhybirdsdon’tgetlostonlongflight______.Intotaldarkness,doves______.
A、Aliteratureprofessor.B、Anacademicadvisor.C、DeanoftheEnglishDepartment.D、ADoctorofAppliedLinguistics.B在对话开头,女士说
最新回复
(
0
)