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如图，在ABCD中，点E在BC上，AE、BD相交于点F，若BE：EC=1：2，则△BEF与四边形FECD的面积比等于
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如图在菱形ABCD中AC和BD相交于点O.过点O.的线段EF与一组对边ABCD分别相交于点E.F.1
如图在梯形ABCD中AD∥BC∠D.=90°BC=CD=12点E.在DC上∠ABE=45°AEBC的
.如图在ABCD中点E.在AB上线段CEBD相交于点F.若AEBE=43且BF.=2.则DF=
如图矩形ABCD的对角线ACBD相交于点O.点E.F.在BD上BE=DF.1求证AE=CF2若AB=
如图在矩形ABCD中对角线AC与BD相交于点O.过点A.作AE⊥BD垂足为点E.若∠EAC＝2∠CA
如图▱ABCD中AC与BD相交于点O.AB=AC延长BC到点E.使CE=BC连接AE分别交BDCD于
.已知如图在□ABCD中∠ADC∠DAB的平分线DFAE分别与线段BC相交于点F.E.DF与AE相交
如图在矩形ABCD中对角线AC与BD相交于点O.过点A.作AE⊥BD垂足为点E.若∠EAC=2∠CA
.如图4在菱形ABCD中对角线AC与BD相交于点O.AC＝8BD＝6OE⊥BC垂足为点E.则OE＝_
如图在梯形ABCD中AD∥BC∠D.=90°BC=CD=12点E.在DC上∠ABE=45°AEBC的
如图在梯形ABCD中AD∥BCBD与AC相交于点O.过点O.的直线分别交ABCD于E.F.且EF∥B
已知如图▱ABCD的对角线ACBD相交于点O.过点O.的直线分别与ADBC相交于点E.F.求证AE=
已知正方形ABCD中点E.F.分别为BCCD上的点连接AEBF相交于点H.且AE⊥BF.1如图1连接
如图在平行四边形ABCD中E.是边BC上的点分别连结AEBD相交于点O.若AD=5则EC=_____
如图矩形ABCD中对角线AC.BD相交于点0在BC上取BE=BO连结AEOE.若∠BOE=75°则∠
30°
45°
20°
15°
已知如图在四边形ABCD中AB=DCAD=BC点E.在BC上点F.在AD上AF=CEEF与对角线BD
如图在矩形ABCD中对角线BD的垂直平分线MN与AD相交于点M.与BD相交于点O.与BC相交于点N.
已知如图□ABCD的对角线ACBD相交于点O.过点O.的直线分别与ADBC相交于点E.F.求证AE＝
如图在矩形ABCD中对角线ACBD相交于点O.AE平分∠BAD交BC于点E.若∠CAE=15°求∠B
如图在梯形ABCD中AD∥BC∠D.=90°BC=CD=12点E.在DC上∠ABE=45°AEBC的
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如图是城市污水处理的流程图 阅读流程图回答下列问题 1在污水处理流程中一级处理过程中使用的处理方法发生的是变化填“物理”或“化学”该过程中的处理方法主要是除去物质 2在消毒清水池中常用二氧化氯这种物质对水进行消毒二氧化氯的化学式是其中氯元素的化合价是价 3硬水在日常生活工业生产中常带来不便长期饮用硬水会增加人体过滤系统结石的得病率．生活中常用的方法将硬水进行软化而区别硬水和软水常使用． 4该污水处理流程中活性炭的作用是． 5高铁酸钠Na2FeO4是水处理过程中使用的一种新型净水剂制取高铁酸钠的化学方程式如下 2FeNO33+16NaOH+3Cl2＝6NaNO3+2Na2FeO4+6x+8H2O则X的化学式是． 6节约用水是每个公民的义务下列用水方式应该提倡的有填字母序号 A．洗澡擦沐浴露时暂时关闭水龙头 B．不间断地边流水边洗衣 C．用淘米水和洗菜水浇花或冲厕所 D．用喷灌滴灌的方法浇灌农田和园林
小红对暗紫色粉末A进行实验实验过程如图所示．请回答下列问题 1写出下列物质的化学符号AEFG． 2写出A受热分解的化学符号表达式 3黑色固体G在无色气体B中得到H的化学符号表达式检验气体H的方法是．
DirectionsCompletethefollowingpassagebyusingthewordsinthebox.Eachwordcanonlybeusedonce.Notethatthereisonewordmorethanyouneed. Consideringhowmuchtimepeoplespendinofficesitisimportantthatworkbewelldesigned.Well﹣designedofficespaceshelpcreateacooperation'simage.Theymotivateworkersandtheymakeanimpressiononpeoplewhovisitandmightbepotentialor41customer.Theymakebusinessesworkbetterandtheyareapartofthecorporateculturewelivein. Aswemoveawayfromanindustrial﹣basedeconomytoaknowledge﹣basedoneofficedesignershavecomeupwith42tothetraditionalworkenvironmentsofthepast.Thedesignindustryhasmovedawayfromafixedofficesetupandcreatedmoreflexiblestrategicmanagementenvironments.These43solutionsaretomeanttosupportbetterorganizationalperformances. Asemployeehierarchies等级制度haveflattenedordecreasedofficedesigners‘responsetothischangehasbeentomoveopen﹣plainareastomoredesirablelocationswithintheofficeandcreatefewerformalprivateoffices.Theneedforincreasedflexibilityhasalsobeen44bychangesinworkstationdesign.Officesandworkspacesoftenarenot45toagivenpersononapermanentbasisbecauseofchangestomethodofworkingnewdesignsallowforexpansionormovementofdesksstorageandequipmentwithintheworkstation.Anotherimportantdesigngoaliscommunicationwhichdesignershaveimprovedbyloweringthewallsthat46workstations.Designershavealsocreatedinformalgatheringplacesandupgradedemployees'47toheavilytraffickedareassuchascopyandcoffeerooms. Corporateandinstitutionalofficedesignersoftenstruggletoresolveanumberofcompetingandoften48demandsincludingbudgetarylimitsemployeehierarchiesandtechnologicalinnovationespeciallyinrelationtocomputerization.Thesedemandsmustalsobebalancedwiththeneedtocreateinteriors内饰thatinsomewayenhanceestablishorpromoteacompany‘simageandwillenableemployeesto49attheirbest.Allthese50ofofficedesignarerelated.Themostsuccessfulofficedesignsarelikeagoodmarriage﹣﹣thewell﹣designedofficeandtheemployeesthatoccupyitareseeminglymadeforeachother. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50.
Giftfromastranger Mylocalsupermarketisalwaysbusy.ThefirstparkingspaceIfoundwasconvenientbutI'dnoticedawomaninabluecarcirclingforawhile.25IwasinagoodmoodIletherhaveit.OntheedgeofthecarparkIbackedintothenextavailablespot﹣itwasatightfit. PrettysoonI'dmademywaythroughthesupermarketandwasbackinthefreshair.FeelinggoodI26emptymypursechangeintothehandsofahomelessmanandhelpedastrugglingwomanreversepark. JustasIapproachedmycar1sawthewomanI'dlethavemycarspaceearlier.Shewasgivingme27oddlook﹣halfpuzzledhalfintent热切的.Ismiledandwishedherapleasantday.AsIsqueezedbackintomycarIspottedthesamelady28lookinatme.Helloshesaidhesitantly.This29soundcrazybutIwasonmywaytodropsomeofmymother'sthingsoffatthecharitybins.Youarejustsomuch30her.YouhelpedthosepeopleInoticedandyouseemedsohappy.Shelookedatmemeaningfullyandpassedaboxinthroughthewindow.Ithinkshewouldlikeyoutohaveit.31shockItookitfromherautomatically.Shesmiledandwalkedaway. AfterapauseIopenedthebox.Insidewasabeautifulgoldnecklacewithalargegreypearl.Itwas32nicegiftI'deverreceivedanditwasfromacompletestranger.Thenecklacewasaroundmyneckawarmreminderofhumankindness. 25. 26. 27. 28. 29. 30. 31. 32.
56.AccordingtotheCodevisitorsshouldact. A.withcareandrespect B.withreliefandpleasure C.withcautionandcalmness D.withattentionandobservation 57.WhatareyouencouragedtodowhentravellinginNewZealand? A.Takeyourowncampingfacilities. B.Buryglassfarawayfromrivers. C.Followthetrackforthesakeofplants. D.Observesignstoapproachnestingbirds.
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OneoftheexecutivesgatheredattheAspenInstituteforaday﹣longleadershipworkshopusingtheworksofShakespearewasdiscussingtheroleofBrutusinthedeathofJuliusCaesar.Brutuswasnotanhonorablemanhesaid.Hewasatraitor叛徒.Andhemurderedsomeoneincoldblood.TheagreementwasthatBrutushadactedwithcrueltywhenotheroptionswereavailabletohim.Hemadeabaddecisiontheysaid﹣atleastasitwaspresentedbyShakespeare﹣totaketheleadinmurderingJuliusCaesar.AndthoughoneoftheexecutivesacknowledgedthatBrutushadthegoodoftherepublicinmindCaesarwasneverthelesshissuperior.Youhavetoendeavortheexecutivessaidourpolicyistoobeythechainofcommand. DuringthelastfewyearsbusinessexecutivesandbookwriterslookingforanewwaytoadvisecorporateAmericahavebeenexploitingShakespeare'swisdomforprofitableends.NonemoresothanhusbandandwifeteamKennethandCarolAdelmanwell﹣knownadviserstotheWhiteHousewhostartedupatrainingcompanycalledMoversandShakespeares.TheyareamateurShakespearescholarsandShakespeareloversandtheyhavecombinedtheirpassionandtheirhighlevelcontactsintoamanagementtrainingbusiness.Theyconductbetween30and40workshopsannuallyfocusingonhalfadozendifferentplaysmostlyforcorporationsbutalsoforgovernmentagencies. Theworkshopsalltakethesameformfocusingonasingleplayasakindofcasestudyandusingindividualscenesasspecificlessons.InJuliusCaesarslyprovocation狡诈的挑唆ofBrutustotakeuparmsagainstthewhatwasabasisforadiscussionofmethodsofteambuildingandgrassrootsorganism. AlthoughneitheroftheAdelmansisacademicallytrainedinliteraturetheprogrammescontainplentyofShakespearetraditionandbackground.TheirworkshoponHenryVforexampleincludesahelpfulexplanationofHenry'swinningstrategyattheBattleofAgincourt.Buttheydocometothetextwithafewbiases偏向theirreadingofHenryVminimizeshismisuseofpower.Insteadtheyemphasizethestoryoftheyouthwhoseizesopportunityandbecomesamasterfulleader.AndattheworkshoponCaesarMr.AdelmanshadlittlegoodtosayaboutBrutussayingthenoblestRomanofthemallcouldn'tmakehismindupaboutthings. ManyoftheparticipantspointedtoveryspecificelementsintheplaythattheyfeltrelatedCaesar'spridewhichledtohismurderandBrutus'smistakesinleadingtheafterthemurdertheysaidraisevitalquestionsforanyoneservingasabusinesswhenandhowdoyouresisttheboss? 73.Accordingtoparagraph1whatdidalltheexecutivesthinkofBrutus?. A.Cruel. B.Superior. C.Honourable. D.Rude 74.AccordingtothepassagetheAdelmanssetupMoversandShakespearesto. A.helpexecutivestounderstandShakespeare'splaysbetter B.giveadviceonleadershipbyanalyzingShakespeare'splays C.providecasestudiesofShakespeare'splaysinliteratureworkshops D.guidegovernmentagenciestofollowthecharactersinShakespeare'splays. 75.WhydotheAdelmansconductaworkshoponHenryV? A.Tohighlighttheimportanceofcatchingopportunities. B.Toencouragemasterfulleaderstoplanstrategiestowin. C.Toillustratetheharmofprejudicesinmanagement. D.Towarnexecutivesagainstpowermisuse. 76.Itcanbeinferredfromthepassagethat. A.theAdelmans'programmeprovesbiasedastherolesofcharactersaremaximized. B.executivesfeelboredwithtoomanyspecificelementsofShakespeare'splays. C.theAdelmanswillmakemoreprofitsiftheyareprofessionalscholars. D.Shakespearehasplayedanimportantroleinthemanagementfield. 77.Thebesttitleforthepassageis. A.Shakespeare'splaysExecutivesreconsidercorporateculture B.Shakespeare'splaysAnessentialkeytobusinesssuccess C.Shakespeare'splaysalessonforbusinessmotivation D.Shakespeare'splaysDramatictrainingbringsdramaticresults.
﹣GoandsaysorrytoyourMomDave. ﹣I'dliketobutI'mafraidshewon'tbehappywithmy. A.requests B.excuses C.apologies D.regrets
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Supposeyoubecomealeaderinanorganization.It'sverylikelythatyou'llwanttohavevolunteerstohelpwiththeorganization'sactivities.Todosoitshouldhelptounderstandwhypeopleundertakevolunteerworkandwhatkeepstheirinterestinthework. Let'sbeginwiththequestionofwhypeoplevolunteer.Researchershaveidentifiedseveralfactorsthatmotivatepeopletogetinvolved.Forexamplepeoplevolunteertoexpresspersonalvaluesrelatedtounselfishnesstoexpandtheirrangeofexperiencesandtostrengthensocialrelationships.Ifvolunteerpositionsdonotmeettheseneedspeoplemaynotwishtoparticipate.Toselectvolunteersyoumayneedtounderstandthemotivationsofthepeopleyouwishtoattract. Peoplealsovolunteerbecausetheyarerequiredtodoso.Toincreaselevelsofcommunityservicesomeschoolshavelaunchedcompulsoryvolunteerprograms.Unfortunatelytheseprogramscanshiftpeople'swishofparticipationfromaninternalfactore.g.Ivolunteerbecauseit'simportanttometoanexternalfactore.g.IvolunteerbecauseI'mrequiredtodoso.Whenthathappenspeoplebecomelesslikelytovolunteerinthefuture.Peoplemustbesensitivetothispossibilitywhentheymakevolunteeractivitiesamust. Oncepeoplebegintovolunteerwhatleadsthemtoremainintheirpositionsovertime?Toanswerthisquestionresearchershaveconductedfollow﹣upstudiesinwhichtheytrackvolunteersovertime.Forinstanceonestudyfollowed238volunteersinFloridaoverayear.Oneofthemostimportantfactorsthatinfluencedtheirsatisfactionasvolunteerswastheamountofsufferingtheyexperiencedintheirvolunteerpositions.Althoughthisresultmaynotsurpriseyouitleadstoimportantpracticaladvice.Theresearchersnotethatattentionshouldbegiventotrainingmethodsthatwouldpreparevolunteersfortroublesomesituationsorprovidethemwithstrategiesforcopingwiththeproblemtheydoexperience. Anotherstudyof302volunteersathospitalsinChicagofocusedonindividualdifferencesinthedegreetowhichpeopleviewvolunteerasanimportantsocialrole.Itwasassumedthatthosepeopleforwhomtheroleofvolunteerwasmostpartoftheirpersonalidentitywouldalsobemostlikelytocontinuevolunteerwork.ParticipantsindicatedthedegreetowhichthesocialrolematteredbyrespondingtostatementssuchasVolunteeringinHospitalisanimportantpartofwhoIam.Consistentwiththeresearchers'expectationstheyfoundapositivecorrelation正相关betweenthestrengthofroleidentityandthelengthoftimepeoplecontinuedtovolunteer.TheseresultsonceagainleadtoconcreteadviceOnceanindividualbeginsvolunteeringcontinuedeffortsmightfocusondevelopingavolunteerroleidentity…ItemslikeT﹣shirtsthatallowvolunteerstoberecognizedpubliclyfortheircontributionscanhelpstrengthenroleidentity. 61.Peoplevolunteermainlyoutof. A.academicrequirements B.socialexpectations C.financialrewards D.internalneeds 62.WhatcanwelearnfromtheFloridastudy? A.Follow﹣upstudiesshouldlastforoneyear. B.Volunteersshouldgetmentallyprepared. C.Strategytrainingisamustinresearch. D.Volunteersareprovidedwithconcreteadvice. 63.Whatismostlikelytomotivatevolunteerstocontinuetheirwork? A.Individualdifferencesinroleidentity. B.PubliclyidentifiablevolunteerT﹣shirts. C.Roleidentityasavolunteer. D.Practicaladvicefromresearchers. 64.Whatisthebesttitleofthepassage? A.HowtoGetPeopletoVolunteer B.HowtoStudyVolunteerBehaviors C.HowtoKeepVolunteers'Interest D.HowtoOrganizeVolunteerActivities.
Looktomanyofhistory'sculturalsymbolsandthereyou'llfindanancestorofFrostythesnowmaninthemovieFrozen.Itappearedonsomeofthefirstpostcardsstarredinsomeoftheearliestsilentmoviesandwasthesubjectofacoupleoftheearliestphotosdatingallthewaybacktothe1800s.Idiscoveredevenmoreaboutoneofhumanity'searliestformsoflifeartduringseveralyearsofresearcharoundtheworld. ForexamplesnowmenwereaphenomenonintheMiddleAgesbuiltwithgreatskillandthought.Atatimeoflimitedmeansofexpressionsnowwaslikefreeartsuppliesdroppedfromthesky.Itwasapopularactivityforcouplestoleisurelywalkthroughtowntoviewthetemporaryworksofchillyart.Somewerecreatedbyfamousartistsincludinga19﹣year﹣oldMichelangelowhoin1494wasappointedbytherulerofFlorenceItalytobuildasnowmaninhismansion'scourtyard. TheMiracleof1511tookplaceduringsixfreezingworkscalledtheWinterofDeath.ThecityofBrusselswascoveredinsnowmen﹣animpressivescenethattoldstoriesoneverystreetcorner.Somewerepoliticalinnaturecriticizingthechurchandgovernment.Somewereareflectionofpeople'simagination.ForthepeopleofBrusselsthiswasadefiningmomentofdefiningfreedom.Atleastuntilspringarrivedbywhichtimetheyweredealingwithdamagingfloods. Ifyoufeartheheydayofthesnowmanhaspasseddon'tworryI'velearnedthatsomeexplosivesnowmanhistoryisstillbeingmadetoday.Everyyearsince1818thepeopleofZurichSwitzerlandcelebratethebeginningofspringbyblowingupasnowman.OnthethirdMondayofApriltheholidaySechselauteniskickedoffwhenacottonsnowmancalledtheBooggisstuffedwithexplosiveandparadedthroughtownbybakersandothertradesmenwhothrowbreadtothecrowds.TheparadeendswiththeBooggbeingplacedona40﹣footpileoffirewood.AfterthebellsoftheChurchofSt.Peterhaverungsixtimesrepresentingthepassingofwinterthepileislit.Whenthesnowmanexplodeswinterisconsideredofficiallyover﹣thequickeritisburntdownthelongersummerissaidtobe. 66.AccordingtothepassagewhydidsnowmenbecomeaphenomenonintheMiddleAges? . A.Peoplethoughtofsnowasholyartsupplies. B.Peoplelongedtoseemasterpiecesofsnow. C.Buildingsnowmenwasawayforpeopletoexpressthemselves. D.Buildingsnowmenhelpedpeopledeveloptheirskillandthought. 67.Theheydayofthesnowmanparagraph4meansthetimewhen. A.snowmenweremademainlybyartists B.snowmenenjoyedgreatpopularity C.snowmenwerepoliticallycriticized D.snowmencauseddamagingfloods 68.InZurichtheblowingupoftheBooggsymbolizes. A.thestartoftheparade B.thecomingofalongersummer C.thepassingofthewinter D.thesuccessoftradesmen 69.Whatcanbeconcludedaboutsnowmenfromthepassage? A.Theywereappreciatedinhistory B.Theyhavelosttheirvalue C.Theywererelatedtomovies D.Theyvaryinshapeandsize.
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Peopleselectnewsinexpectationofareward.Thisrewardmaybeeitheroftwokinds.OneisrelatedtowhatFreudcallsthePleasurePrincipletheothertowhathecallstheRealityPrinciple.Forwantofbetternamesweshallcallthesetwoclassesimmediaterewardanddelayedreward.Ingeneralthekindofnewswhichmaybeexpectedtogiveimmediaterewardarenewsofcrimeandcorruptionaccidentsanddisasterssportssocialeventsandhumaninterest.Delayedrewardmaybeexpectedfromnewsofpublicaffairseconomicmatterssocialproblemsscienceeducationandhealth. Newsofthefirstkindpaysitsrewardsatonce.Areadercanenjoyanindirectexperiencewithoutanyofthedangersorstressesinvolved.Hecantremblewildlyatanaxe﹣murdershakehisheadsympatheticallyandsafelyatahurricaneidentifyhimselfwiththewinningteamlaughunderstandinglyatawarmlittlestoryofchildrenordogs.Newsofthesecondkindhoweverpaysitsrewardslater.Itsometimesrequiresthereadertotolerateunpleasantnessorannoyance﹣asforexamplewhenhereadsofthethreateningforeignsituationthemountingnationaldebtrisingtaxesfallingmarketscarcehousingandcancer.Ithasakindofthreatvalue.Itisreadsothatthereadermaybeinformedandprepared.Whenareaderselectsdelayedrewardnewshepullshimselfintotheworldofsurroundingrealitytowhichhecanadapthimselfonlybyhardwork.Whenheselectsnewsoftheotherkindheusuallywithdrawsfromtheworldofthreateningrealitytowardthedreamworld. Foranyindividualofcoursetheboundariesofthesetwoclassesarenotstable.Forexampleasociologistmayreadnewsofcrimeasasocialproblemratherthanforitsimmediatereward.Acoachmayreadasportsstoryforitsthreatvaluehemayhavetoplaythatteamnextweek.Apoliticianmayreadanaccountofhislatestsuccessfulpublicmeetingnotforitsdelayedrewardbutverymuchashiswifereadsanaccountofaparty.Inanygivenstoryofcorruptionordisasterathoughtfulreadermayreceivenotonlytheimmediaterewardofindirectexperiencebutalsothedelayedrewardofinformationandpreparedness.Thereforewhilethedivisionofcategoriesholdsingeneralanindividual'stendencymaytransferanystoryfromonekindofreadingtoanotherordividetheexperiencebetweenthetwokindsofreward. 71. 72. 73. 74. 75. 76. 77. 78. 79. 80.
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