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
The Price of Idleness 1.Electrical devices such as CD players, vidoes and burglar alarms are consuming more energy in standby mo
The Price of Idleness 1.Electrical devices such as CD players, vidoes and burglar alarms are consuming more energy in standby mo
admin
2009-06-15
127
问题
The Price of Idleness
1.Electrical devices such as CD players, vidoes and burglar alarms are consuming more energy in standby mode than when they are actually being used.
2.Maria Sanchez and her colleagues from the Lawrence Livermore National Laboratory in Berkeley, California, tested more than 50 small electrical applicances, from computers to doorbells, electric mowers, VCRs, and pool pumps. In the current issue of Energy Policy, they report that about half of all consumer electronics energy is used in standby mode. This costs American consumers $1 billion a year in wasted energy.
3.The researchers say that while electronic devices are lying dormant(休眠状态),running their clocks, maintaining internal memories or displaying their settings, they consume aroud 40 terawatt hours of electricity in the U.S. every year--enough to power a city such as Chicago or London. Many machines use almost as much power on standby as when working. For example, it takes 15 watts to play a typical CD, but an average of 11 watts to keep it on standby. Satellite TV systems use 14 watts when active and 14 watts on standby. Given the long hours these systems spend idling, each uses far more power in standby mode than when actually working.
4."Bad design is largely to blame," says Sanchez. In a separate survey of CD players last year, her colleague Wolfgang Huber found that two machines with similar features used 28 watts and 2 watts respectively on standby. "For most products, we believe that standby power can be reduced to one watt or less," says Sanchez.
5.She backs proposals to set up a national labeling system to promote machines that meet this standard. Such a system could reduce standby power consumption in the U.S. by 50 per cent, says coauthor Alan Meier--more than 20 terawatt hours per year. Last month, electronics company Philips announced the launch of a device that can dramatically reduce the power used in standby mode.
选项
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/8thd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
相关试题推荐
Currentlyabout70,000peopleareaged100oraboveinAmerica.Noneofthefivecentenarianshaveanychildren.
ParentsintheUnitedStatestendtoasktheirchildrenWhydoAmericanrestaurantsservelargeportions?
Thesecretsofsleepwereamysteryforcenturiessimplybecausetherewasneitherthemeans(51)them,northeneed.Onlywhenca
Theremaybeagoodreasonwhysomepeoplearenotabletostopsmokingcigarettes.Anewstudyfoundthatpeoplewhosufferfro
Thestaffofthecompanyarealwayscourteousandhelpful.
BeingSickPeoplearephysical,psychological(心理的),spiritual(精神的),andsocialhumanbeings.Theyhavecertainbasicnee
Throughouttheworldthereisashortageofhumanorgansfortransplants.InBritain,forexample,6000peoplearewaitingforo
Throughouttheworldthereisashortageofhumanorgansfortransplants.InBritain,forexample,6000peoplearewaitingforo
Throughouttheworldthereisashortageofhumanorgansfortransplants.InBritain,forexample,6000peoplearewaitingforo
Acupofwholemilkprovidesroughlyonehundredsixty-sixcaloriesofenergy.
随机试题
局域网不提供()服务。
总分类账簿与明细分类账簿的区别在于______。
在斗谱中,密蒙花因不常用,应放在斗架的
原始数据中的每个值都加(或减)一个不为零的常数后,则
卫生行政许可是卫生行政部门根据公民、法人或者其他组织的申请,按照卫生法律、法规、规章和卫生标准、规范进行审查,准予其从事与()有关的特定活动的行为。
S.S.Stevens根据()将量表分为四种水平。
你在年初买入一份零息债券,其面值为1000美元,到期收益率为7%,到期期限为25年。如果你在整年中持有该债券,那么你在计算应税所得时的利息收入是多少?
求
Theword"intolerable"consistsof______morphemes.
A、Togetusedtothelocaldayandnightcycle.B、Todobodytrainingandgetstronger.C、Totakeinmuchfresherairoutside.D
最新回复
(
0
)