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
What do we learn about the use of solar energy in the USA?
What do we learn about the use of solar energy in the USA?
admin
2010-01-07
119
问题
What do we learn about the use of solar energy in the USA?
Little by little, Americans are turning to solar power, tapping the strength of the sun for energy.
Solar energy is only in its infancy, however, sunlight has already been used for heating or cooling homes and office buildings in the sunny south. Experts say all signs point to the birth of the solar energy industry. Right now, an increasing number of companies are selling solar collector panels to heat and cool homes or to heat water. The glass and metal panels cost from $ 100 to more than $ 500 each, and the three or four bedroom homes usually require a dozen or more. They look like sandwiches, or very narrow flower boxes, 3 to 6 feet in width, 8 to 10 feet long, and 4 to 8 inches thick. They are usually placed in rooftops. Nobody knows how many have been sold, and in addition, many people have built their own units. It has been estimated that solar power equipment will be a $ 1.3 billion industry by 1995, and more a million homes will use sunlight for heat, air conditioning or to generate electricity, both in the cities and in countryside.
选项
A、It is very well established.
B、It is relatively new.
C、It is found in one million homes.
D、It is being rapidly expanded.
答案
D
解析
转载请注明原文地址:https://www.kaotiyun.com/show/nwPd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
WhenwastheAmericanFootballAssociationfounded?
A=BewitchedB=SavingPrivateRyanC=TeamAmerica:WorldPoliceD=GodfatherWhichmovie.tellsthestoryaboutthelastg
A=BewitchedB=SavingPrivateRyanC=TeamAmerica:WorldPoliceD=GodfatherWhichmovie.tellsthestoryaboutthelastg
A=BewitchedB=SavingPrivateRyanC=TeamAmerica:WorldPoliceD=GodfatherWhichmovie.tellsthestoryaboutthelastg
TodayTVaudiencesallovertheworldareaccustomedtothesightofAmericanastronautsintip-topcondition,withfairhair,c
ThehistoryofresponsestotheworkoftheartistSandroBotticelli(1444—1510)suggeststhatwidespreadappreciationbycritics
Malelionsareratherreticentaboutexpendingtheirenergyinhunting—morethanthree-quartersofkillsaremadebylionesses.
Walking—likeswimming,Bicyclingandrunning—isanaerobicexercise,【C1】______buildsthecapacityforenergyoutputandphysica
Whatdoes"runoff"mean?
随机试题
胃癌最主要的转移方式是
病儿,女,1岁。诊断为营养不良性缺铁性贫血。症见面色萎黄,神疲乏力,食欲不振,少气懒言,舌淡,苔薄白,指纹淡红。中医辨证为
缓脉的主病为
背景资料:某建筑公司承建香雪海花小区工程的3号、4号两栋高层住宅,均为地下1层,地上18层,总建筑面积28000m2,框架剪力墙结构,2011年8月11日工程正式开工。2012年5月9日晚20:00左右,现场夜班塔吊司机王某在穿越在建的4号楼裙楼的上岗途
承担支持进出口贸易融资任务的政策性银行是( )。
信用风险管理措施不包括()。
近年来,全国每年发生交通事故40多万起,造成近10万人死亡。司机的酒驾、超载和超速驾驶,行人无视红绿灯的“中国式过马路”等行为都是导致交通事故发生的重要原因。西方思想家曾言,最重要的法律,既不是刻在大理石上,也不是刻在铜表上,而是铭刻在公民的心中
(2009上网工)软件风险一般包含______两个特性。
在考生文件夹下有一个数据库文件“samp3.accdb”,里面已经设计好表对象“tBorrow”、“tReader”和“tBook”,查询对象“qT”,窗体对象“fReader”,报表对象“rReader”和宏对象“rPt”。请在此基础上按以下要求补充设计
Language-basedlearningdisabilitiesareproblemswithage-appropriatereading,spelling,and/orwriting.Thisdisorderisnot
最新回复
(
0
)