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
11
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
Arapidmeansoflong-distancetransportationbecameanecessityfortheUni
[originaltext]W:Hi,Jack.Goodnews.M:Whatisit?W:I’vegotajobofferfr
当直线相关系数r=0时,说明变量之间不存在任何相关关系。()
当基坑周围环境时,基坑开挖深度小于()为三级基坑。A.8m B.7m C
关于X线防护原则,错误的是A.合理降低个人受照剂量 B.合理降低全民X线检查频
甲公司2013年度资金平均占用额为6200万元,经分析,其中不合理部分200万元
企业进行商业信用筹资,存在的缺点有( )。A.商业信用不容易获得 B.企业的
关于招标代理机构的资格管理,下列说法中正确的有()。A、中央投资项目招标代理机构
下列各项中,会导致公司的决议不成立的有( )。A.甲有限责任公司减少注册资本的决
甲公司对持有的应收票据管理的目的是将其持有至到期以收取合同现金流流量,同时兼顾流
最新回复
(
0
)