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 burning of coal is very wasteful of energy. This can be realized when we remember that one pound to coal burned in the furna
The burning of coal is very wasteful of energy. This can be realized when we remember that one pound to coal burned in the furna
admin
2012-01-19
20
问题
The burning of coal is very wasteful of energy. This can be realized when we remember that one pound to coal burned in the furnace of a power station【C1】______raise enough team to drive a generator【C2】______will produce enough current to light a one barelectric fire for three hours. On the other hand, if all the energy in the atoms of a pound of coal could be released,【C3】______should be enough energy to【C4】______all the machinery in all the factories in Britain for a month.
In simpler words, all this means that one pound of any element or compound of element, if completely converted【C5】______energy by breaking up the atoms, would【C6】______the same amount of heat【C7】______the burning of 1,500,000 tons of coal. Scientists have calculated that if a bucket of sand from the beach could be completely【C8】______into energy, and if the energy so obtained was used to drive electric generators, enough【C9】______would be produced to supply the whole of Europe for five years.【C10】______other words, a bucket of sand contains enough energy to【C11】______a thousand million pounds’ worth of electricity.
Albert Einstein was the first man to realize the vast【C12】______of energy locked in the atom. Einstein was also the first to show in theory how the energy of the atom might be released. Indeed without Einstein’s theory【C13】______was the result of many complicated mathematical calculations, there would never have been any practical【C14】______of nuclear power.
In 1905, which was many years before other scientists really understood a great deal about atomic energy, Einstein declared that if you "destroyed" a given mass of matter, you would obtain【C15】______its place an enormous amount of energy.
【C16】______support this theory, Einstein worked【C17】______what is probably the most important equation in the history of mathematics. It was【C18】______no means a complicated equation, but in fact a very simple【C19】______. Here it is: E=MC
2
.
Turned into simple language, Einstein’s equation means that energy(E) is equal【C20】______mass(M) multiplied by the speed of light(C) squared(C2).
【C15】
选项
A、from
B、in
C、on
D、of
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/sCjd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
ReadtheparagraphsontheJapanesemanagement.ForQuestions61to65,matchthenumberofeachparagraphtooneofthetopics
Companieswithlargescaleneedawaytoreachthesavingsofthepublicatlarge.Thesameproblem,onasmallerscale,faces
AninterestingtheoryineconomicsisdemonstratedbytheHeadManofasmallmountaintribe.Itseemsthatthistribewasvery
Whatarethesepeopleplanningtodo?
Inancienttimesmostculturesandcivilizationsmadesomereferencetotheoriginoftheirlanguages.However,theydidnotstu
Text...Fossilfuelsburnedto【C1】______carsandtrucks,【C2】______homesandbusinesses,andpowerfactoriesare【C3】______for
Text...Fossilfuelsburnedto【C1】______carsandtrucks,【C2】______homesandbusinesses,andpowerfactoriesare【C3】______for
Applecomputerintroduceditspioneering,user-friendlyMackintoshcomputerin1984.The"Mac"quicklybecamepopularandappear
Applecomputerintroduceditspioneering,user-friendlyMackintoshcomputerin1984.The"Mac"quicklybecamepopularandappear
Belowaresomepicturesshowingthebehaviorsofsometourists.Lookatthepicturesandwriteanessayofabout120wordsmakin
随机试题
流感患者发病后12小时出现高热、烦躁、呼吸困难、咳血痰和明显发绀,应考虑的临床类型是
男,1岁半。因发热、咳嗽5天入院,诊断为急性肺炎。入院后持续高热,第3天病情加重,剧烈咳嗽,呼吸困难明显。查体:P142次/分,口唇发绀,左上肺叩诊鼓音,下方叩诊为实音,听诊呼吸音减低,右肺可闻及中细湿啰音,肝肋下1cm。该患儿目前应考虑急性肺炎合并
下列关于工程建设标准的说法,正确的是()。
记名股票是指在股票和股份公司的股东名册上记载股东的姓名的股票,它有以下()特点。
阅读关于“太阳对地球的影响”的图文资料,按要求完成教学设计任务。材料一《普通高中地理课程标准(2017年版)》的内容标准要求:“说明太阳对地球的影响。”材料二某版本教科书中关于“太阳对地球的影响”的部分内容。
新课程体系的使用范围包括()。
小丽在全国数学比赛中获得第二名,老师在班上点名予以表扬和鼓励,从这以后,小丽学习更加努力,数学科目的成绩越来越好。这符合桑代克学习规律中的()
公民、法人和其他组织协助人民武装警察部队执行任务造成人身伤亡和财产损失的,()。
将前缀运算符“--”重载为非成员函数,下列原型中能正确用于类中说明的是()。
Therewas____________(排了那么长的队)attheexhibitionthatwehadtowaitforabouthalfanhoar.
最新回复
(
0
)