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简介：叮铃铃一上课啦!老师拿着教学道具走进了教室。老师拿的是什么呢？答案就在谜语中。

简介：自从我开设爱的课程以来，那些岁月已经成了我一生最激动的时刻。在我尽力为别人打开爱的大门的同时，也为自己打开了爱的大门。

简介：请你帮Krug小姐把学生的名字按照字母顺序写在花名册上。

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简介：重描右边的英文单词，并沿虚线剪下图片粘在下图中的恰当位置。

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简介：Aspeaker’scommandoflanguageismuchinfluencedbyhissocialstatus.Peoplefromdifferentsocialclassesusedifferentvarietiesoflanguage.Allsociallinguisticstudiesconcernlanguageinasocialcontext,treatingspeakersasmembersofsocialgroups.Labov’sstudiesgiveusalotinthisaspect.

简介：ClassesarethebasicmodulesinObject-Oriented(OO)software,whichconsistofattributesandmethods.Thus,inOOenvironment,thecohesionismainlyabouthowtightlytheattributesandmethodsofclassescoherewitheachother.Thisletterdiscussestherelationshipsbetweenattributesandattributes,attributesandmethods,methodsandmethodsofaclass,andthepropertiesoftheserelationships.Basedontheseproperties,theletterproposesanewframeworktomeasurethecohesionofaclass.Theapproachovercomesthelimitationsofpreviousclasscohesionmeasures,whichconsideronlyoneortwoofthethreerelationshipsinaclass.

简介：Inthispaper,wediscusstheconvergenceoftheBroydenalgorithmswithrevisedsearchdirection.Undersomeinexactllnesearches,weprovethatthealgorithmsaregloballyconvergentforcontinuouslydifferentiablefunctionsandtherateofconvergenceofthealgorithmsisone-stepsuperlinearandn-stepsecond-orderforuniformlyconvexobjectivefunctions.

简介：ＯＮＡＣＬＡＳＳＯＦＡＮＩＳＯＴＲＯＰＩＣＤＩＦＦＵＳＩＯＮＥＱＵＡＴＩＯＮＳＯＮＡＣＬＡＳＳＯＦＡＮＩＳＯＴＲＯＰＩＣＤＩＦＦＵＳＩＯＮＥＱＵＡＴＩＯＮＳ￥ＧＡＯＨａｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＦｕｄａｎＵｎｉｖｅｒｓｉｔ...

简介：ＥＸＣＥＳＳＩＶＥＦＵＮＣＴＩＯＮＳＯＦＡＣＬＡＳＳＯＦＳＵＰＥＲＰＲＯＣＥＳＳＥＳＺｈａｏＸｕｅｌｅｉ（赵学雷）（ＩｎｓｔｉｔｕｔｅｏｆＭａｔｈｅｍａｔｉｃｓ，ＳｈａｎｔｏｕＵｎｉｖｅｒｓｉｔｙ，Ｓｈａｎｔｏｕ５１５０６３，Ｃｈｉｎａ）Ａｂｓｔｒａ...

简介：Inthispaper,weintroduceandstudyanewclassofquasivariationalinequalities.Using’essentiallytheprojectiontechniqueanditsvariantforms,weestablishtheequivalencebetweengeneralizednonlinearquasivariationalinequalitiesandthefixedpointproblems.Thisequivalenceisthenusedtosuggestandanalyzeanumberofnewiterativealgorithms.Thesenewresultsincludethecorrespondingknownresultsforgeneralizedquasivariationalinequalitiesasspecialcases.

简介：Theuseofultra-highintensitylaserbeamstoachieveextremematerialstatesinthelaboratoryhasbecomealmostroutinewiththedevelopmentofthepetawattlaser.Petawattclasslasershavebeenconstructedforspecificresearchactivities,includingparticleacceleration,inertialconfinementfusionandradiationtherapy,andforsecondarysourcegeneration(x-rays,electrons,protons,neutronsandions).Theyarealsonowroutinelycoupled,andsynchronized,tootherlargescalefacilitiesincludingmegajoulescalelasers,ionandelectronaccelerators,x-raysourcesandz-pinches.Theauthorsofthispaperhavetriedtocompileacomprehensiveoverviewofthecurrentstatusofpetawattclasslasersworldwide.Thedefinitionof‘petawattclass’inthiscontextisalaserthatdelivers>200TW.

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