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
56
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] 【C9】
选项
A、commit
B、heat
C、power
D、back
答案
C
解析
power“给……提供动力、电力”,此处指“给一个家庭或社区提供电力”。
转载请注明原文地址:https://tihaiku.com/zcyy/3200644.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
Althoughwehaveateam,andeachoneintheteamisa______,westilllostth
【S1】[br]【S8】A
Therearetwotypesofriskrelatedtoinvestment.Theobviousriskisthat
Peopletravelforalotofreasons.Sometouristsgotoseebattlefieldsor
初中地理《美国领土组成》 一、考题回顾 题目来源1月6日上午湖北省黄冈市
( )技术不能保障应用系统的完整性。A.奇偶校验法 B.数字签名 C.物理
肾病综合征患儿激素疗效判断,使用泼尼松的剂量(每日最大剂量≤60mg)及疗程标准
美术教材编写的要求不包括()A.以教材为本 B.强调实践能力的培养 C.
材料一 “我们都在努力奔跑,我们都是追梦人。”是的,我们都是追梦
患儿,男,4岁,因感冒出现鼻塞,可选用的治疗方案是A.口服氯苯那敏片 B.口服
最新回复
(
0
)