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
考研
Cars account for half the oil consumed in the U.S., about half the urban pollution and one fourth the greenhouse (温室) gases. The
Cars account for half the oil consumed in the U.S., about half the urban pollution and one fourth the greenhouse (温室) gases. The
admin
2016-03-06
54
问题
Cars account for half the oil consumed in the U.S., about half the urban pollution and one fourth the greenhouse (温室) gases. They take a similar toll (损耗) of resources in other industrial nations and in the cities of the developing world. As vehicle use continues to increase in the coming decade, the U.S. and other countries will have to deal with these issues or else face unacceptable economic, health-related and political costs. It is unlikely that oil prices will remain at their current low level or that other nations will accept a large and growing U.S. contribution to global climatic change.
Policymakers, and industry have four options: reduce vehicle use, increase the efficiency and reduce the emissions of conventional gasoline-powered vehicles, switch to less harmful fuels, or find less polluting driving systems. The last of these—in particular the introduction of vehicles powered by electricity—is ultimately the only sustainable option. The other alternatives are attractive in theory but in practice are either impractical or offer only marginal improvements. For example, reduced vehicle use could solve traffic problems and a host of social and environmental problems, but evidence from around the world suggests that it is very difficult to make people give up their cars to any significant extent. In the U.S., mass-transit ridership and carpooling (合伙用车) have declined since World War II. Even in western Europe, with fuel prices averaging more than $ 1 a liter (about $ 4 a gallon) and with easily accessible mass transit and dense populations, cars still account for 80 percent of all passenger travel.
Improved energy efficiency is also appealing, but alternative fuel economy has barely made any progress in 10 years. Alternative fuels such as natural gas, burned in internal-combustion engines, could be introduced at relatively low cost, but they would lead to only marginal reductions in pollution and greenhouse emissions (especially because oil companies are already spending billions of dollars every year to develop less polluting types of gasoline). (337 words)
Which of the following is the best solution to the problems mentioned in the passage?
选项
A、The designing of highly efficient car engines.
B、A reduction of vehicle use in cities.
C、The development of electric cars.
D、The use of less polluting fuels.
答案
C
解析
本题属于细节题。根据题干中的“solution”可确定答案在第二段,又根据“best”可进一步确定答案在该段第二句“…is ultimately the only sustainable(可持续的)option”。
转载请注明原文地址:https://kaotiyun.com/show/OOna777K
本试题收录于:
艺术硕士(艺术基础)题库专业硕士分类
0
艺术硕士(艺术基础)
专业硕士
相关试题推荐
《中国好声音》作为一档选秀类节目,其制作采取了抬高入选门槛、不搞海选、将评判权交予专业人士投票等与选秀节目不同的做法。您认为这种思路对节目起到了什么作用?为什么?
Thefactthatblindpeoplecan"see"thingsusingotherpartsoftheirbodiesapartfromtheireyesmayhelpustounderstando
Toomanyvulnerablechild-freeadultsarebeingruthlessly(无情的)manipulatedintoparenthoodbytheirparents,whothinkthatha
CarsaccountforhalftheoilconsumedintheU.S.,abouthalftheurbanpollutionandonefourththegreenhouse(温室)gases.The
Ifyouknowexactlywhatyouwant,thebestroutetoajobistogetspecializedtraining.Arecentsurveyshowsthatcompanies
Doyouknowhowtouseamobilephone(手机)withoutbeingrudetothepeoplearoundyou?Talkingduringaperformanceirritat
Brazilhasbecomeoneofthedevelopingworld’sgreatsuccessesatreducingpopulationgrowth—butmorebyaccidentthandesign.
Imagineeatingeverythingdeliciousyouwant—withnoneofthefat.Thatwouldbegreat,wouldn’tit?New"fakefat"products
GenerationsofAmericanshavebeenbroughtuptobelievethatagoodbreakfastisoneoflife’sessentials.Eatingbreakfastat
随机试题
结合阴道毛滴虫的生物学特性分析其致病力。
电流互感器的一次电流取决于()。
在实验室进行钢板样水浸泡试验时,距试样边缘6.2mm以内应无鼓泡。
伤寒最严重的并发症是
简述市场营销策划方案的内容。
某农场蔬菜、水果等保存窖保管和维护员工,某天突然感到胸闷,呼吸困难,伴口唇青紫等症状和体征,可能接触何种有害气体对此患者应作何种急救处理
[2009年,第58题]一弹簧质量系统,置于光滑的斜面上,如图4.11-4所示。斜面的倾角α以在O~90°间改变,则随α增大系统振动的固有频率()。
()分为L型和Z型。
下列标志可以作为商标使用的是()。
若整型变量a和b中的值分别为7和9,要求按以下格式输出a和b的值:a=7b=9请完成输出语句:printf("【】",a,b);。
最新回复
(
0
)