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
44
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.
【C11】
选项
A、slightly
B、on purpose
C、dramatically
D、economically
答案
C
解析
dramatically“明显地,显著地”,此处指“显著降低”。
转载请注明原文地址:https://jikaoti.com/ti/8FHMFFFM
0
专业英语四级
相关试题推荐
Businessandgovernmentleadersalsoconsidertheinflationratetobeanimportantgeneralindicator.Inflationisaperiodof
WriteonANSWERSHEETTWOacompositionof200wordsonthefollowingtopic:WhatWouldYouLiketoDoafterGrad
Peoplethinkingabouttheoriginoflanguageforthefirsttimeusuallyarriveattheconclusionthatitdevelopedgradually
Thespeakerlikesteachingbecauseof______.
SomeofthedatafromasurveyonnationalstereotypesinsomeEuropeancountriesissummarizedbelow: Likedthemselvesbes
Clearweatherispredictedin______Chinesecities.Whichforeigncity’smaximumtemperatureisthehighest?
"WouldyousendthismessagetoProf.Wilson?""Sure,________himaboutsomethingelseinanycase,sotherewon’tbeanybother
WhathappenedonJanuary27th,1967?
Iamafraidthatthetapeyoulentmeyesterdayis______.
Yesterday’sstrikecausedcompleteconfusionfor______.
随机试题
用盖碗冲泡绿茶时,以80℃左右的开水高冲入碗,冲水量以()满为宜。
坐商招徕顾客的传统标志是
黄连解毒汤治疗的病证包括
下列哪种情况肺泡呼吸音增强
兼有清热解暑功效的利湿药是
A.食物、空气、水B.免于灾难、没有焦虑和恐惧C.渴望名誉和声望D.个人能力和潜能充分发挥E.和周围人友好相处以上哪项属于自我实现的需要
若对该房地产采用收益法进行评估,则净收益按()计算。若该酒店处于住宅区内,周围商业用地较少,该房屋为八成新,此时拆迁评估优先选择的方法是()。
行政机关在作出影响相对方权利义务决定时,要说明作出决定的事实原因和法律依据,这是行政程序的()制度。
捆绑销售是共生营销的一种形式,指两个或两个以上的品牌或者公司在促销过程中进行的合作,从而扩大它们的彤响力。根据上述定义,下列属于捆绑销售的是()。
级数在一1<x<1内的和函数为___________.
最新回复
(
0
)