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
2011-01-08
53
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【21】______ in that they are both renewable. 【22】______ , hydropower is more widely used than tidal. In【23】______ , a substantial amount of electricity is already produced in HEP (hydroelectric power)stations worldwide, 【24】______ tidal stations are still in the very early【25】______ of development.
As far as geographical【26】______ is concerned, HEP projects are to be found on lakes and rivers, while tidal【27】______ are constructed only at river mouths where tidal【28】______ is great. Unfortunately these are【29】______ in number. At present HEP stations are found mainly in Norway, Canada, Sweden and Brazil, whereas tidal plants are in【30】______ in France, Russia and China.
As regards capital【31】______ , both require very high investment. On the other hand, generating【32】______ are quite low in both cases. In fact, a large scale HEP plant is capable of producing power more【33】______ than conventional sources, such as coal, oil and nuclear plants. Tidal power also compares【34】______ with nuclear and oil generated electricity, 【35】______ the amount of money on production. 【36】______ HEP stations, tidal constructions have a long life【37】______ . It is estimated that they can operate for over 100 years. With respect to【38】______ of supply, tidal stations【39】______ from HEP ones in that they often can only supply power【40】______. HEP stations, however, pro vide a constant supply of electricity.
【32】
选项
A、expenditures
B、benefits
C、costs
D、profits
答案
D
解析
expenditure花费;benefit益处;cost成本;profit利润。根据句意,两种电站产生的利润都很低,故选择D。
转载请注明原文地址:https://kaotiyun.com/show/j2xd777K
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
Somepeoplewerejustborntorebel;CharlesDarwinwasoneofthem.【21】______NicholasCopernicus,BenjaminFranklinandBillGa
Somepeoplewerejustborntorebel;CharlesDarwinwasoneofthem.【21】______NicholasCopernicus,BenjaminFranklinandBillGa
Duringthe1980s,womenstartedtoplayamoreimportantrolein______.AccordingtoParagraph3,havingajob______.
WhatdowelearnabouttheuseofsolarenergyintheUSA?
Thedestructionofournaturalresourcesandcontaminationofourfoodsupplycontinuetooccur,largelybecauseoftheextreme
Numberoflanguagesintheworld(approx)is______.
Whichwordbestdescribesthelawyers’predictionofthechangeindivorcerate?
ThedivorcerateinAmericahasreached
ThedivorcerateinAmericahasreached
ThedivorcerateinAmericahasreached
随机试题
下列选项所列行为中,不属于侵犯专利权的行为有()。
下列关于脊椎结核的叙述,错误的是
内科医生王某,在春节探家的火车上遇到一位产妇临产,因车上无其他医务人员,王某遂协助产妇分娩。在分娩过程中,因牵拉过度,导致新生儿左上肢臂丛神经损伤。王某行为的性质为
建设项目财务评价的作用包括()。
某工地钢筋从两个地方采购,其采购量及有关费用见表1,则该工地水泥的基价为()元/t。
甲公司主营业务为自供电方购买电力后向实际用电方销售,其与供电方、实际用电方分别签订合同,价款分别结算,从供电方购入电力后,向实际用电方销售电力的价格由甲公司自行决定,并承担相关收款风险。2×16年12月,因实际用电方拖欠甲公司用电款,甲公司资金周转出现困难
下列属于意大利巴洛克风格的著名雕塑家是()。
左图为给定的多面体,从任一角度观看,下面哪一项不可能是该多面体的视图?
OurPhonesAren’tJustMessingWithOurPolitics—They’reAlsoSlowingOurEconomyThehand-wringingunderwayabouttherol
下列是一组关于实践观的材料材料1“正如在社会中,每个人的能力总是最容易在动荡的情况下而不是在其他情况下发挥出来,所以同样隐蔽在自然中的事情,只是在技术的挑衅下,而不是在任其自行游荡下,才会暴露出来。”重要的方法:对自然的观察、思考和实验。
最新回复
(
0
)