首页
登录
职称英语
The exploitation of the power in the Sun’s rays is a form of alternative en
The exploitation of the power in the Sun’s rays is a form of alternative en
游客
2023-11-19
37
管理
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. [br] 【C2】
选项
A、while
B、if
C、of
D、for
答案
A
解析
此处意为“在提高可靠性的同时,降低太阳能转化系统的成本”。
转载请注明原文地址:https://tihaiku.com/zcyy/3200637.html
相关试题推荐
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
Thereareseveral______toyourplan.A、alternativesB、alternationsC、alternator
ThesearchforacheapalternativefuelhasledAmericanscientiststostudythe
随机试题
Neither______northemiddlelayeroftheatmospherecontainscumulusclouds.A、in
Aninternationalcommitteeofdoctorssaysthatthenumberofcasesofbrain
Anygoodmysterymusteventuallyuncoveravillain,andinarecentdocumen
Mancangoonincreasinghisnumbersat
沿面放电电压、与同样距离下的纯空气间隙的放电电压相比总是()。A.高 B.低
下面叙述不正确的是A.派生类一般都用公有派生 B.对基类成员的访问必须是无两义
听力损失为41~55dB是A.极度聋 B.重度聋 C.轻度聋 D.中重度聋
慢性严重贫血的病儿输血时需要考虑的原则下列哪一项正确A.贫血愈重,每次输血量愈大
《企业债券管理条例》规定,企业发行企业债券的总面额不得大于该企业的()。A
(2015年真题)下列各项中,在“销售费用”科目核算的有()。A.因销售商品发
最新回复
(
0
)