首页
登录
职称英语
Constant variations in the amount of sunlight available on Earth at any give
Constant variations in the amount of sunlight available on Earth at any give
游客
2024-01-10
8
管理
问题
Constant variations in the amount of sunlight available on Earth at any given location make energy storage a necessary design feature of terrestrial solar-energy systems. For systems transforming solar to thermal energy, the thermal energy may be stored in matter as either latent heat or sensible heat. Latent heat is absorbed or released whenever matter changes phase, as when matter changes from liquid to gas, for example, or from gas to liquid. Large heat capacities are associated with certain materials, like salts, but in any substance this storage is available only at the unique fixed temperature at which the particular phase transition occurs in that substance. Moreover, materials that have transitions at the temperatures that terrestrial solar-energy systems are likely to encounter are usually destructively corrosive at those temperatures. The storage of sensible heat, on the other hand, allows flexibility as to temperature, in addition, safe substances like water and most rocks have large sensible heat capacities. [br] The primary purpose of the passage is to discuss which of the following?
选项
A、Reasons for the necessity for developing solar-energy systems
B、Different ways of storing solar energy as heat
C、New designs for devices that collect solar energy
D、Procedures for transferring thermal energy between materials
E、Differences between capacities of solids and liquids to store sensible heat
答案
B
解析
本题属于主旨题,而本文是总分结构,因此正确答案只要同义改写本文主旨句即可,故选项B正确。different ways对应的是潜热和显热。A项文中未提及。C项文中未提及。D项属于细节。E项文中未提及。
转载请注明原文地址:https://tihaiku.com/zcyy/3349607.html
相关试题推荐
Government-subsidizedinsuranceavailabletohomeownersmakesitfeasibleforan
Althoughspinachisrichincalcium,italsocontainslargeamountsofoxalicac
Excludingpurchasesbybusinesses,theaverageamountspentonafactory-newcar
Althoughpartoftheivoryavailableonworldmarketswastakenfromwildelepha
Thelargeamountsofcarbondioxidenowbeingreleasedintotheatmospherebyth
Thehighcostofproductionisseverelylimitingwhichoperasareavailabletot
A1972agreementbetweenCanadaandtheUnitedStatesreducedtheamountofphos
Thecommissionacknowledgedthatnoamountofmoneyorstaffmemberscanensure
Dr.TonegawawontheNobelPrizefordiscoveringhowthebodycanconstantlycha
Lackinginformationaboutenergyuse,peopletendtooverestimatetheamountof
随机试题
【B1】[br]【B3】[originaltext]Microsoftisawell-knowncorporationanditsmain
WhattheHeckDoesVincentvanGoghHaveToDoWithInternetMarketing?
Girlsthinktheyarecleverer,moresuccessfulandharderworkingthanboys
以下对项目管理和项目监理的理解中,正确的是()。A.项目监理属于项目管理的监
斯金纳认为行为分为两类:应答性行为和{}行为。
()的基本假设是投资者是厌恶风险的。A.马可维茨的证券组合理论 B.法玛
深股通可交易的证券品种包括(). I.市值10亿元人民币及以上的深证成分指数的
下面引起产妇死亡占首位的原因是A.妊娠合并心脏病 B.子宫破裂 C.羊水栓塞
人力资源创新的条件包括软件和硬件两部分,软件是指人力资源创新的人文支撑系统,涵盖
产品竞争一般要经历的过程是()。 A.产量竞争——价格竞争——质量竞争——服
最新回复
(
0
)