学科分类
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500 个结果
  • 简介:some与any他们都是不定代词,又都兼作一形容词,都含有“一些”的意思,都可修饰或代替名词。some经常用在肯定句中;any一般用于否定句或疑问句中。下面我们先来看看他!们在句中的“表演”吧:

  • 标签: SOME ANY 不定代词 “表演” 形容词 肯定句
  • 简介:some与any是表示不定数量的代词,都有“一些”的意思,通常可用来修饰或代替可数名词复数或不可数名词,在句中作主语、宾语和定语,但用法不同:some一般用于肯定句中,而any多用于疑问句、否定句或条件状语从句中。这可用下表表示:

  • 标签: SOME ANY 代词 初中 英语 用法
  • 简介:Hey!Theflowerpot(花盆)isapuzzle.YoucanseesomeEnglishcapitallettersonthepetals(花瓣)andontheflowerpot.Er!Ifyoucount,therearetenEnglishcapitalletters.Somearethesame.TheyareA,I,U,Rs,Es,TsandL.Afterenjoyingthepic-ture,finishatask.Pleaseformwordsasmanyasyoucan.Therulesare:Letterscanonlybeusedonceforeachtime.Plurals,propernames(专有名词)donotcount.OK!Startyourworkatonce,please.Havefun!

  • 标签: 高中 英语 课外阅读 阅读材料
  • 简介:StudyinginCornellisachallengingexperience.Whatmakesitbotheasierandharderisthefactthatyoucanfindinspirationseverywherearound:fromaprofessor,fromafriend,fromanacquaintance,orevenfromastranger.Thesepeopleexcel——sometimesitseemsliketheyexcelineverything.

  • 标签: 中学 英语 课外阅读 阅读材料
  • 简介:Inanalyzingthequestionofdemocracy,weneedtoconcentrateonitsessence.Itwon’tdoforusjusttolookattheformitassumes.Thepeoplewantdemocracybecausetheyneedtohavecertaindemandsmetandcertaininterestsrealized.Theywillstrivefordemocracywhentheyaredeniedoftherighttopursuetheirdemandsandinterests.Itisclearthatdemocracyhasalwaysbeenassociatedwiththepeople’sdemandsandinterests.Theessenceofdemocracy

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  • 简介:Jerry’s ,Sugar.Jerry,I...Joe

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  • 简介:Forhundredsofyearspeoplehavesailed,flown,andwalkedintotheareanowknownastheUnitedStates.Exceptfortheapproximately2millionNativeAmericans.everyonewholiyesintheUnitedStatesisdescendedfromaculturethatwastransplantedfromsomewhereelseintheworld.Theseculturescometogethertoformwhatmanypeoplenowrefertoasa″saladbowl.″Eachcultureaddingitstastetothemixbutkeepingitsownidentity.Themeltingpot″ideaofoldhasbeenreplaced.ThiscanbeseenbythenumberofChinatowns.Koreatowns,Poletowns,etc.

  • 标签: 约翰
  • 简介:在这份报纸,我们在Rn上为Hormander鈥檚拉普拉斯算符考虑主要特征值问题,并且我们为如此的主要特征值发现一个比较原则。我们也在整个Rn学习一个相关半线性的亚elliptic方程并且证明在一个合适的条件下面,我们无穷地有这个问题的许多积极答案。关键词主要特征值-Hormander鈥檚拉普拉斯算符-积极答案先生(2000)题目分类35J65-35H20这个工作被中国的钥匙973工程部分地支持

  • 标签: 主要本征值 Hormander拉普拉斯算子 正解 比拟原理
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  • 简介:Thispaperreviewsnumericalandexperimentalinvestigationsofsheet/cloudcavitationcarriedoutattheSt.AnthonyFallsLaboratoryandattwocollaboratingfacilities(VersuchsanstaltFürWasserbau,Obernach,GermanyandOsakaUniversity,Japan)formorethanadecade.Althoughsignificantadvanceshavebeenmadeintheanalysisofthisflowseveralissuesarestillunresolved.Thepurposeofthispaperistoexaminetheoverallfeaturesoftheproblem,reviewtheprogressmadetodateandsuggestavenuesfornewinvestigation.

  • 标签: 空化 注记 水翼 日本大阪大学 数值模拟 FTIR
  • 简介:SomesharpsufficientconditionsforgeneralizedLienardsystemstohavepositiveornegativesemi-orbitswhichdonotcrosstheverticalisoclinearegiven.Applicationsofthemainresultstosomepolynomialsystemsarealsopresented.

  • 标签: LIENARD system LOCAL PROPERTY GLOBAL PROPERTY
  • 简介:ThefollowingfourconjecturesaboutstructuralofSATarestudiedinthispaper.(1)SAT∈P^SPARSE∩NP;(2)SAT∈SRTDtt;(3)SAT∈Ptt^bAPP;(4)FPtt^SAT=FTlog^SAT.ItisprovedthatsomepairsoftheseconjecturesimplyP=NP,forexample,ifSAT∈P^SPARSE∩NPandSAT∈Ptt^bAPP,orifSAT∈SRTDttandSAT∩PttbAPP,thenP=NP.Thisimprovespreviousresultsinliterature.

  • 标签: 计算机数学 SAT 结构特性