简介：Today＇sMissionWhataretwothingsapostmancando？You＇vegotmail!TodayIamlearningtobeapostman.APostmanstartshisdayearlyatthepostoffice.Hereeverypostmanneedstoorganizethemailbyaddress,roadsandpostalcodes.

简介：小李：我要寄这个包。邮局职员：你要保价吗？小李：保一百元吧，我还要两张邮票。邮局职员：你要到邮票窗口买。

简介：小朋友们，今天秋天姐姐要给大家介绍一位新朋友，他的名字叫做Ron.Ron刚刚学习英语，所以很多事情、很多东西都没法用英语表达，这不，在邮局就遇到了麻烦！

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简介：本单元知识网络同步讲解SectionA1.Isthereahospitalnearhere?这附近有医院吗?这是一个therebe句型。结构:therebe+sb/sth+地点,表示在某地有某人或某物(there是引导词没有词义;be是谓语动词;某人/物是主语,地点作状语,多为介词短语)。如:

简介：同步讲解SectionA1.Isthereahospitalnearhere?这附近有医院吗?这是一个therebe句型。结构:therebe+sb/sth+地点,表示在某地有某人或某物(there是引导词没有词义;be是谓语动词;某人/物是主语,地点作状语,多为介词短语)。如:Thereisabankintheneighborhood.附近有一家银行。注意:(1)therebe句型的谓语动词be在人称和数上应与后面的第一个名词保持一致。如果后面的名词是可数名词单数

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简介：Abstract:Languageteachersarefrequentlyconfrontedwithmultiplerolestheyhavetoplayinteachingwritingonundergraduatelevel:beinganadviser,aninstructor,asupervisor,areaderandagrader.Itisoftenhardforateachertoswitchfromoneroletoanotherandprovidestudentswithpracticable,applicableinstructions.Theconventionalpre-writingandafter-writinginstructionsareconvenientandhelpful.Oftenforstudents,concreteandspecificcommentscanhelpthemmorethanpost-writingcomments,whichleavesmoresuggestionsandhopetostudentsthanspecifichelp.Inmodeledcompositiontheteacherofferssuggestionsinthebeginning,attheend,andmosthelpfully,inthemargins.Thesespecificformsofsuggestionscancomeinbothcontentandform,andcaninvolvemacroandmicrolanguagepoints.Differentgenresofinstructionofwritingcanbemodeled.Themodelscanbegivenorally,inwriting,byelectronicandconventionalmeans.Keywords:instruction,composition,undergraduatewritingIntroductionInteachingcomposition,teacherssometimeslamentsforbeingunabletohelpwithcontentandform,withstructureaswellasexpression.Forlowerintermediatelearners,inparticular,veryfundamentalorgrammaticalaspectscanappearasveryurgentifthesemeanagoodstarting-pointtomakeprogress.Theymayexpecttheteachertoimparthisorherexperienceinplanning,formattingandoutliningthewholeprose.Theymayalsoexpecthimorhertogivetheexpertiseastotheapproachandattitudetospecialgenre,suchasEST.Tofulfillsuchademandingtasksuccessfully,itisindeednecessarytobreakthewholeprosewritingintosmallbitsandtomakeitmanageableandapproachable.Insuchcase,asingleparagraph,ratherthananentirelyessaymaybemoreusefulthanalongtextasthebasisonwhichtosetthemodels……

简介：Thestrainmonitoringandstressanalysisofanewtypeofpost-prestressedtunnellinerwerecarriedout.Theinstrumentationblockofthetunnelliner,withthedimensionsof12.06minlength,6500mmindiameter,and650mminthickness,waspost-prestressedwiththeunbondedtendons,eachofwhichconsistsof8piecesofdouble-loopedstrandsandtheaxialspacingofthetendonsis500mm.Concretestrainmeters,rebarmeters,loadcellandzero-stressmeterswereinstalledforthestrainmonitoring.Thetensioningloadswereappliedincrementallyinthreecycles(50%,77%and100%)attheconcreteageof28dandthetensioningworklastedfor187.1h.Strainreadingsweretakenbeforeandaftereachcycleduringtensioningperiodandatthespecifiedtimeintervalaftertensioningperiod.Itisfoundthatconcretecreepdevelopedovertensioningperiodis30%oftotalstrainand41.5%ofelasticstrainrespectively.Prestressforceintheunbondedtendonandconcretestressinthelinerwereevaluatedaccordingtotheobservedstrainvariations.Bothofthemaretime-dependent,andabout5.3%,8.3%and9.0%oftheprestresslossesareobservedattheageof1d,30dand60drespectivelyafterstressing.Thedistributionofprestressinthelinerisrelativelyuniformandmeetsthedesignrequirement.

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简介：即使"后现代"建筑,后现代（Post-modern）建筑在中国的传播,詹克斯的《后现代建筑语言》

简介：Concussion,ormildtraumaticbraininjury,incidencerateshavereachedepidemiclevelsandimpairedposturalcontrolisacardinalsymptom.Thepurposeofthisreviewistoprovideanoverviewofthelinearandnon-linearassessmentsofpost-concussionposturalcontrol.Thecurrentacuteevaluationforconcussionutilizesthesubjectivebalanceerrorscoringsystem(BESS)toassessposturalcontrol.Whilethesensitivityoftheoveralltestbatteryishigh,thesensitivityoftheBESSisunacceptablylowand,withrepeatadministration,isunabletoaccuratelyidentifyrecovery.Sophisticatedmeasuresofposturalcontrol,utilizingtraditionallinearassessments,haveidentifiedimpairmentsinposturalcontrolwellbeyondBESSrecovery.Bothassessmentsofquietstanceandgaithaveidentifiedlingeringimpairmentsforatleast1monthpost-concussion.Recently,theapplicationofnon-linearmetricstoconcussionrecoveryhavebeguntoreceivelimitedattentionwiththemostcommonlyutilizedmetricbeingapproximateentropy(ApEn).ApEn,mostcommonlyinthemedial-lateralplane,hassuccessfullyidentifiedimpairedposturalcontrolintheacutepost-concussiontimeframeevenwhenlinearassessmentsofinstrumentedmeasuresareequivalenttohealthypre-injuryvalues;unfortunatelythesestudieshavenotgonebeyondtheacutephaseofrecovery.Onestudyhasidentifiedlingeringdeficitsinposturalcontrol,utilizingShannonandRenyientropymetrics,whichpersistatleastthroughclinicalrecoveryandreturntoparticipation.Finally,limitedevidencefromtwostudiessuggestthatindividualswithaprevioushistoryofasingleconcussion,evenmonthsoryearsprior,maydisplayalteredApEnmetrics.Overall,non-linearmetricsprovideafertileareaforfuturestudytofurthertheunderstandingofposturalcontrolimpairmentsacutelypost-concussionandaddressthecurrentchallengeofsensitiveidentificationofrecovery.

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简介：数控机床的控制系统、控制方式不同，G代码程序格式和指令方式也不同。极坐标数控机床接受“G01X，Z，C”格式的极坐标指令，完成C轴旋转坐标和Z轴线性坐标的合成运动轨迹一阿基米德螺线轨迹运动。通过UG后置处理开发工具POSTBuilder完成对极坐标数控机床后置处理文件的定制，实现极坐标指令格式、动作事件、文件格式的处理。

简介：授课对象：七年级学生指导老师：王兰英（陕西省西安市教育科学研究所中学英语教研员）一、教学内容本堂课的教学内容为人教版新目标《英语》七年级（下）Unit8Isthereapostofficenearhere？TheFirstPeriodSectionA（1a—2c）。本单元主要围绕问路、指路的常用表达方式展开,问路指路话题与学生的日常生活联系紧密,容易激发他们的学习兴趣,这对于提高其综合语言运用能力很有帮助。

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