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
48
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] 【C13】
选项
A、perspective
B、regular
C、average
D、spontaneous
答案
C
解析
average意为“平均”。此处意为“在光电模块的平均效率上”。
转载请注明原文地址:https://tihaiku.com/zcyy/3200648.html
相关试题推荐
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
TheexploitationofthepowerintheSun’sraysisaformofalternativeen
Thereareseveral______toyourplan.A、alternativesB、alternationsC、alternator
ThesearchforacheapalternativefuelhasledAmericanscientiststostudythe
ThesearchforacheapalternativefuelhasledAmericanscientiststostudythe
随机试题
HEALTHSURE-foryouandyourfamilyManyh
AdroughtthatagovernmentofficialcalledthemostsevereMexicohadever
Althoughfewwoulddenythatit’sbettertoberichthanpoor,forsomepeop
TheLakeDistrict,whichiswell-knownforitsbeautifulscenery,islocatedin
某工程确定选用名义制冷量为200kW的螺杆式冷水机组,由生产厂家的样本查得:该机
( )是Linux中Samba的功能。A.提供文件和打印机共享服务
岩土工程勘探方法主要包括下列哪几项? Ⅰ.坑探Ⅱ.钻探Ⅲ.地球物理勘探Ⅳ
蛛网膜下腔出血最常见的病因是A、脑血管畸形 B、脑动脉硬化 C、脊髓或椎管内
将运算放大器直接用于两信号的比较,如图a)所示,其中,ua=-1V,ua的波形由
对急性肾小球肾炎活动期最为合适的治疗措施是A.休息和控制感染 B.低蛋白饮食
最新回复
(
0
)