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
23
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://kaotiyun.com/show/uzCd777K
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
WouldyouliketoorbittheEarthinsidetheInternationalSpaceStation?Nowyoucantakeaspaceholiday—forapriceThisis
WhichoneofthefollowingisnotmentionedbyKerry?
Although【21】______circuitsmadecomputerssmaller,theprocessingunitsstillconsisted【22】______anumberofcircuits
HousingisoneofthemostimportantissuesconcerningChinesepeoplenow.Thefollowinggraphshowsthepriceofhousein1987
Giventhelackoffitbetweengiftedstudentsandtheirschools,itisnotsurprisingthatsuchstudentsoftenhavelittlegood
Directions:Thefollowingthreechartsrepresentingtheratiobetweenstate-ownedhousesandprivatehousesinBeijingduring19
"Ido."ToAmericansthosetwowordscarrygreatmeaning.Theycanevenchangeyourlife.Especiallyifyousaythematyourow
OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcreditcard.Theygivetheirownersautomaticcreditin
ForcenturiesthemostvaluableofAfricanresourcesforEuropeansweretheslaves,butthesecouldbeobtainedatcoastalports
随机试题
给定资料1.“分类型垃圾桶网上卖断货了”“工作太忙只能求助爸妈或保姆,家人多了很多话题”“公司里个人座位旁的垃圾桶都没有了,扔垃圾人都跑瘦了”……近日,强制垃圾分类成为网络热门话题,一些个人生活习惯悄然改变。上海市民宋女士说,为减少垃圾分
价格水平是决定企业产品是内销还是外销的一个关键因素。()
关于三视图的说明,正确的有()。
测量误差按其产生的原因和对测量结果影响性质的不同可分为()。
“以身立教”,“为人师表”体现了教师劳动的_____特点。【】
关于皮亚杰及其认知发展阶段理论,下列选项中叙述正确的是()
根据合同法的有关规定,下列选项中,可以适用缔约过失责任的情形有()。
设矩阵A=,B=P-1A*P,求B+2E的特征值与特征向量,其中A*为A的伴随矩阵,E为3阶单位矩阵.
设矩阵A=,E为2阶单位矩阵,矩阵B满足BA=B+2E,则|B|=________.
Becauseconflictanddisagreementsarepartofallcloserelationships,couplesneedtolearnstrategiesformanagingconflicti
最新回复
(
0
)