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
21
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
Lillyhastogetupearlyandarriveingoodtimebecause______.[originaltext]M
NocountryintheworldhasmoredailynewspapersthantheUSA.Thereareal
Wesometimesthinkhumansareuniquelyvulnerabletoanxiety,butstresssee
现浇钢筋混凝土楼梯根据()不同分为板式楼梯和梁式楼梯。A.楼梯段的位置 B.
下列选项,属于审计的分类标准的有()。A.主体 B.组织方式
Thechangeinthatvillagewasmiraculou
患者男,62岁。咳嗽30年,近日咳大量脓痰,气憋,下肢水肿。首先应考虑什么病
某公司计划2012年营业利润590万元,实际营业利润634万元。则:()=634
取得期货从业资格考试合格证明的人员可以通过其所在机构向当地的期货业协会申请从业资
下列各项控制中,属于检查性控制的是()。A.出纳不能兼任收入或支出的记账工作
最新回复
(
0
)