首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The exploitation of the power in the Sun’s rays is a form of alternative energy now showing new commercial promise. In the
The exploitation of the power in the Sun’s rays is a form of alternative energy now showing new commercial promise. In the
admin
2010-04-24
36
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.
【C1】
选项
A、strides
B、background
C、investments
D、strategy
答案
A
解析
strides意为“大步,跨步”。此处意为“取得重大进步”。
转载请注明原文地址:https://jikaoti.com/ti/SFHMFFFM
0
专业英语四级
相关试题推荐
IamthankfultotheAmericanpeopleforthegreatprivilegeofbeingabletoserveasyournextpresident.Iwanttothankmyw
WhathappenedtotheLondonundergroundrailwayaboutthreedecadesago?
1 Howwelookandhowweappeartoothersprobablyworriesusmorewhenweareinourteensorearlytwentiesthanatanyother
Thetranslatormusthaveanexcellent,up-to-dateknowledgeofhissourcelanguages,fullfacilityinthehandlingofhistarget
The________physicisthasbeenchallengedbyothersinhisfield.
Veryfewscientists________withcompletelynewanswerstotheworld’sproblems.
WhichofthefollowingisNOTlistedasterroristgroupbytheUS?
Attentiontodetailsissomethingeveryonecanandshoulddo--especiallyinatightjobmarket.BobCrossIcy,ahuman-resources
Couldyoupleasegivemeahand?Let’s_________thebookcaseintoplace.
ParcelExpressneedsthefollowingdetailsaboutthesenderEXCEPT
随机试题
A.抽查检验B.注册检验C.复验D.指定检验药品被抽验者对药品检验机构的检验结果有异议而向药品检验机构提出的检验是
维修资金明细户一般按单幢住宅设置,具体办法由()制定。
多栏式账页适用的明细账户是()。
关于固定股利支付率政策,下列说法错误的有()。
在单位存款业务中,存款人因借款或其他结算需要,在基本账户开户银行以外的营业机构开立的银行结算账户是()。
注册会计师负责审计甲公司20×4年度财务报表。在考虑利用内部审计工作时,注册会计师遇到下列事项,请代为作出正确的专业判断。以下有关内部审计说法中,正确的有()。
下列班级管理的模式中,()是指班主任既通过对集体的管理去间接影响个人,又通过对个人的管理去影响集体,从而把对集体和对个人的管理结合起来的管理方式。
在下面各句横线处,依次填入最恰当的词语。①个别企业干扰、阻挠________拒绝接受物价检查,影响恶劣。②大量先进机器设备的使用,显著提高了施工的________和质量。③这里为鸟类栖息提供了丰富的海洋食物,年复一年,岛上________了大量鸟粪。
NOTICEItisimportanttodeveloptruecompetenceinnewskills,notjustreceiveaproductoverview.Thebestwaytoassurecom
Everyonehasheardtilephrase"apictureisworthathousandwords".Videoconferencingprovidesthatpicture,bringingdecision
最新回复
(
0
)