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
In addition to the established energy sources such as gas, coal, oil and nuclear, there are a number of other sources that we ou
In addition to the established energy sources such as gas, coal, oil and nuclear, there are a number of other sources that we ou
admin
2019-01-25
28
问题
In addition to the established energy sources such as gas, coal, oil and nuclear, there are a number of other sources that we ought to consider. Two of these are hydroelectric and tidal power.
These two sources are【C1】______in that they are both renewable.【C2】______, hydropower is more widely used than tidal. In【C3】______, a substantial amount of electricity is already produced in HEP (hydroelectric power)stations worldwide,【C4】______tidal stations are still in the very early【C5】______of development.
As far as geographical【C6】______is concerned, HEP projects are to be found on lakes and rivers, while tidal【C7】______are constructed only at river mouths where tidal【C8】______is great. Unfortunately these are【C9】______in number. At present HEP stations are found mainly in Norway, Canada, Sweden and Brazil, whereas tidal plants are in【C10】______in France, Russia and China.
As regards capital【C11】______, both require very high investment. On the other hand, generating【C12】______are quite low in both cases. In fact, a large scale HEP plant is capable of producing power more【C13】______than conventional sources, such as coal, oil and nuclear plants. Tidal power also compares【C14】______with nuclear and oil generated electricity,【C15】______the amount of money on production.【C16】______HEP stations, tidal constructions have a long life【C17】______. It is estimated that they can operate for over 100 years. With respect to【C18】______of supply, tidal stations【C19】______from HEP ones in that they often can only supply power【C20】______. HEP stations, however, provide a constant supply of electricity.
【C8】
选项
A、variation
B、balance
C、frequency
D、stability
答案
C
解析
variation变化;balance平衡;frequency频率;stability稳定。这里指的是潮汐电站只能规划建于潮汐发生频率高的河流人口处,故选C。
转载请注明原文地址:https://jikaoti.com/ti/weGsFFFM
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
BoeingCo’sSonicCruiser,aproposedfasterairliner,wouldbemostlyblendedmaterial,programdirectorWaltGillettesaidrec
Whoisthepersonbeinginterviewed?
Cairo,thecradleofcivilization,theMeltingPotofAncientandModernEgyptianCivilizations.ItisthelargestcityintheM
Howlongdoesaninterviewusuallylastaccordingtothespeaker?
Although【21】______circuitsmadecomputerssmaller,theprocessingunitsstillconsisted【22】______anumberofcircuits
Whiletherearealmostasmanydefinitionsofhistoryastherearehistorians,modernpracticemostcloselyconformstoonethat
OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcreditcard.Theygivetheirownersautomaticcreditin
BetweentheeighthandeleventhcenturiesA.D,theByzantineEmpirestagedanalmostun-paralleledeconomicandculturalreviv
Americansfullyexpectthepresidentto______.
What’sthedifferencebetweentheAsianelephantandtheAfricanelephant?
随机试题
心理学研究应以正常健康人为对象,人的本性是善良的并蕴藏着巨大的潜能。持这种观点的心理学理论流派是()
患者,男,35岁,症见发热恶寒,疮形如粟,坚硬根深,状如铁钉,处以五味消毒饮,药用:金银花15g,野菊花6g,蒲公英6g,紫花地丁6g,紫背天葵子6g。处方中,蒲公英的药用部位为()
A、百分吸收系数B、比旋度C、折光率D、熔点E、饱和甘汞电极的电极电位ESCE为( )的缩写。
环磷酰胺引起的出血性膀胱炎可以用下列哪个药解救()。
()等情形,承运人将无权援用法定的赔偿责任限额。
“活到老,学到老”,要求教师坚持()的职业道德规范。
讲诚信,就应说到做到,对作出的承诺绝不能______。
行政沟通,指在行政管理活动中,行政机构之间或行政机构与有关方面之间的信息上的传递交流与联系。下列不属于行政沟通的一项是()。
求
ThreeyearsagoElonCollege,aschoolofmorethan4,000studentswitharisingacademicreputation,decideditwasnolongerg
最新回复
(
0
)