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
Since about 1800, near the beginning of the industrial revolution, coal, petroleum and gas have been used at a rapidly increasin
Since about 1800, near the beginning of the industrial revolution, coal, petroleum and gas have been used at a rapidly increasin
admin
2010-10-14
29
问题
Since about 1800, near the beginning of the industrial revolution, coal, petroleum and gas have been used at a rapidly increasing rate. The supply of these【C1】______is limited and electric power is very【C2】______in many places. Some scientists believe solar energy is the only【C3】______that can meet the world’s enormous【C4】______for power. Great progress had been made harnessing the sun. Not only is the sun now used in cooking, 【C5】______it also supplies power for【C6】______things as beacon lights for ships and airplanes. It【C7】______telephone lines, portable radios, electric clocks, hearing aids, and even communication satellites. Some homes and office buildings in U. S. A. are now being【C8】______with solar energy. The three most【C9】______types of solar equipment so far are the furnace, the still(蒸馏器)and the cell. Solar furnaces heat water or air,【C10】______is then circulated through a building to make it comfortable. Solar stills are【C11】______important because they can provide【C12】______water at a relative cheap rate. Salt can easily be【C13】______from sea water with solar still. The most highly developed type of solar【C14】______equipment is the solar cell. Some cells are so【C15】______that they can turn 16% of the energy they receive from the sun【C16】______electric energy. One of the cell’s biggest advantages is【C17】______it can be made either small enough to carry【C18】______large enough to produce current that can run an automobile. Besides, it has a very long life. It is still too expensive for the【C19】______consumer but when ways are【C20】______to produce it more cheaply, we can expect its use to be widely-spread.
【C19】
选项
A、special
B、normal
C、average
D、general
答案
C
解析
此句意思为“太阳能电池对消费者来说,过于昂贵”,special“特别的”,意思不符。normal和general是干扰项,“普通人、人民大众”用average people来表示,故此处选average,表示“普通消费者”,是习惯用法。
转载请注明原文地址:https://kaotiyun.com/show/pK87777K
0
大学英语四级
相关试题推荐
AsFordMotor’sboardofdirectorsgatheredtoholditsquarterlymeetingThursday,speculationwasgrowingthattheworld’sNo.
A、Anartmuseum.B、Abeautifulpark.C、Acollegecampus.D、Anarchitecturalexhibition.C女士告诉男士说自己喜欢这个校园,到处是大树、绿色的草坪等,真是太漂亮了;男士认
AlanGreenspan:theMostPowerfulGuyWiththeAmerican’sMidtermElectionsover,andanewCommander-in-Chiefabouttostep
Longbusridesareliketelevisionshows.Theyhaveabeginning,amiddle,andanend-withcommercialsthrownineverythreeorfou
Manystudentsfindtheexperienceofattendinguniversitylecturestobeareallyconfusingandfrustratingexperience.Thelect
Participationinhighschoolsportsisnotaconstitutionalright.Rather,itisa【C1】______,paidforbytaxpayers,opentostu
Asummaryofthephysicalandchemicalnatureoflifemustbegin,notontheEarth,butintheSun;in【C1】______attheSun’sver
Asummaryofthephysicalandchemicalnatureoflifemustbegin,notontheEarth,butintheSun;in【C1】______attheSun’sver
Asummaryofthephysicalandchemicalnatureoflifemustbegin,notontheEarth,butintheSun;in【C1】______attheSun’sver
A、Thepopulationisincreasinggreatly.B、Peoplearegettingolder.C、Morepeoplearecaughtbyfataldiseases.D、Thehospitals
随机试题
Koalaslookliketeddybears,【C1】______theyarenotbearsatall.Theyarereallyanimalscalledmarsupials.Theseanimalsc
长期无保护的接触X线可引起
患儿,男,1岁。患维生素D缺乏性佝偻病,夜啼不宁,多汗,惊惕不安,行走不稳,出牙延迟。舌淡,苔薄白,指纹淡。治疗首选
患者,女,36岁。患子宫肌瘤。产后4周突然出现剧烈腹痛、发热,最可能的原因是肌瘤发生
下列不属于信息管理主要内容的是()。
股票的价格常被视为“随机游走”,那么“随机游走”是指股价服从()。
在会计核算中,对效益惠及几个会计期间的支出,应作为()处理。
联系实际,分析影响课程实施的主要因素有哪些。
以下关于计算机病毒防治的论述中,正确的是(15)。
WilliamWordsworth,aromanticpoet,advocatedallofthefollowingEXCEPT______
最新回复
(
0
)