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
2024-10-24
1
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] 【C6】
选项
A、constructed
B、produced
C、harnessed
D、erected
答案
B
解析
此处意为“能够以较低的成本被大量生产”。
转载请注明原文地址:https://tihaiku.com/zcyy/3815203.html
相关试题推荐
ThesearchforacheapalternativefuelhasledAmericanscientiststostudythe
ThesearchforacheapalternativefuelhasledAmericanscientiststostudythe
ThesearchforacheapalternativefuelhasledAmericanscientiststostudythe
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
Thereareseveral______toyourplan.A、alternativesB、alternationsC、alternator
随机试题
Thenewspapermustprovideforthereaderthefacts,objectivelyselectedfa
Forthispart,youareallowed30minutestowriteanessayentitledOnCultural
建筑物的哪种供暖系统高度超过50m时宜竖向分区设置?()A.热水供暖系统
下列各项不属于地籍调查成果服务范围的是( )。A.为土地管理服务 B.为房地
女性,25岁,妊娠5个月,因转移性右下腹痛2小时就诊。诊断为急性阑尾炎,不宜采用
A.气清香,味苦B.气特异而臭,刺激性强C.气腥,味淡D.无臭,味微咸E.气腥,
行政案件判决时,对被告不履行或者拖延履行法定职责的,应()。A.可以判决变更
社会工作研究的目的在于()。A.促进经济发展 B.维护社会治安 C.建设社
方差越大,随机变量取值的范围越大,其不确定性增加,风险程度也越大。()
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)