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 exploitation of the power in the Sun’s rays is a form of alternative energy now showing new commercial promise. In the
The exploitation of the power in the Sun’s rays is a form of alternative energy now showing new commercial promise. In the
admin
2010-04-24
26
问题
The exploitation of the power in the Sun’s rays is a form of alternative energy now showing new commercial promise.
In the US, manufacturers have made important 【C1】______ in the development of the technology to bring down the cost of solar conversion systems 【C2】______ improving their reliability.
The direct conversion of solar 【C3】______ electrical energy, using photovoltaic cells 【C4】______ distinct advantages as an alternative energy option.
【C5】______ other forms of renewable energy, photovoltaic is based on modular solid state devices which can be mass 【C6】______ at a relatively low cost.
Here wafers of silicon—not dissimilar 【C7】______ ones which are turned into silicon chips— 【C8】______ an electric current when light falls upon them.
When built into panels or modules where each cell interconnects, the amount of electricity generated can be large enough to 【C9】______ a home or even a community.
Over the past 10 years, 【C10】______ extensive research and substantial Government and private industry funding, the price of photovoltaic modules has dropped 【C11】______ .
【C12】______ in 1973-74 the price per peak watt was between US $100 and $150, commercial prices for small array system now vary between $6.50 and $7 per watt.
This rapid price reduction has been accompanied by a 400 per cent jump in the 【C13】______ efficiency of photovoltaic modules.
【C14】______ solar cells are poor converters of sunlight to electricity. Early cells could only manage to mm about five per cent of the incident rays into electricity, but recent development have increased 【C15】______ to more than 10 percent.
【C5】
选项
A、From
B、Unlike
C、By
D、As to
答案
B
解析
此处意为“不像其它的可更新能源”。
转载请注明原文地址:https://jikaoti.com/ti/yFHMFFFM
0
专业英语四级
相关试题推荐
Ascitizensofadvancedbutvulnerableeconomies,wemusteitherrelentlesslyincreasethequalityofourskillsorseeourstan
Businessandgovernmentleadersalsoconsidertheinflationratetobeanimportantgeneralindicator.Inflationisaperiodof
WriteonANSWERSHEETTWOanoteofabout50-60wordsbasedonthefollowingsituation:Mrs.Malcolm’sson,Johnhasgraduate
OncefoundalmostentirelyinthewesternUnitedStatesandillAsia,dinosaurfossilsarenowbeingdiscoveredonallsevencon
WriteonANSWERSHEETTWOacompositionof200wordsonthefollowingtopic:HavingaCompanybefore
ScientistshavelongbelievedonewaytostoptheEarth’satmospherefromwarmingisbyplantingmoretrees.Theideaisthatmo
ScientistshavelongbelievedonewaytostoptheEarth’satmospherefromwarmingisbyplantingmoretrees.Theideaisthatmo
TheCBIwillthisweekannounceaThinkBritishcampaignaimedatcuttingimportsandstimulatinghomeindustries.Themanbehin
About______offoreign-ownedcompaniesavoidedfederaltaxesaltogether.
随机试题
在管理中经常是“外行领导内行”,这在一定程度上表明对管理者来说()。
中国的新民主主义革命为什么必须由无产阶级领导?
下列各项,不属于岩的病因病机的是
在如图所示系统中,绳DE能承受的最大拉力为10kN,杆重不计,则力P的最大值为()kN。
政府为了实现社会总供求平衡的目标,对财政收支总量和结构进行调整的准则和措施的总合,是()
根据物权法律制度的有关理论,下列选项中,属于民法意义上的孳息的有()。
个人存款可以分为()。
根据以下资料,回答106-110题。2006年,全国研究与试验发展(R&D)经费总支出为3003.1亿元,比上年增加553.1亿元,研究与试验发展(R&D)经费投入强度为1.42%。按研究与试验发展人员(全时工作量)计算的人均经费支出为20万元,比
“我们敢说日常所见的人中,十分之九都是他们的教育所决定的”这一观点出自()
Superstitionisadifficultquestion.WecannotquitesaythatsuperstitioninBritainisdead.Itshistoryisboth【76】longand
最新回复
(
0
)