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设集合M=x∈R|x2-3x-10<0,N=x∈Z||x|<2,则M∩N为______
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已知fx=mx2+nx﹣2n>0m>0的图象与x轴交与20则的最小值为
设集合P={m|-1<m<0}Q={m∈R.|mx2+4mx-4<0对任意实数x恒成立}则下列关系中
P
Q
Q
P
P=Q
P∩Q=
先阅读以下材料然后解答问题分解因式.mx+nx+my+ny=mx+nx+my+ny=xm+n+ym+
5.00分设函数fx=lnx﹣mx2+2nxm∈Rn>0若对于任意的x>0都有fx≤f1则
lnn<8m
lnn≤8m
lnn>8m
lnn≥8m
设集合A={x|x2﹣3x+2=0}B={x|x2﹣mx+2=0}若B⊆A求实数m的值组成的集合.
设集合M={x│0≤x
{x│0≤x<1}
{x│0≤x<2}
{x│0≤x≤1}
{x│0≤x≤2}
若集合A.={x|x2+x-6=0}B.={x|mx+1=0}且B.⊆A.求m的取值集合.
已知函数fx=x3+3mx2+nx+m2在x=﹣1时有极值0则m+n=.
当x=1时代数式mx3+nx+1的值是2009则当x=—1时代数式mx3+nx+1的值是
—2007
—2009
—2008
2008
设集合P={m|-1<m<0}Q={m∈R.|mx2+4mx-4<0对任意实数x恒成立}则下列关系中
PQ
QP
P=Q
P∩Q=
若多项式x4+mx3+nx﹣16含有因式x﹣2和x﹣1则mn的值是
100
0
﹣100
50
已知集合A={x|x2﹣5x+6=0}B={x|mx+1=0}且A∪B=A则实数m组成的集合.
函数y=mx2+nx+p是y关于x的二次函数的条件是
m=0
m≠0
mnp≠0
m+n+p=0
设集合A={x|x2﹣10x+21≤0}.B={m|关于x的方程x2﹣mx+3m﹣5=0无解}.则
设集合M.={x|2x2-5x-3=0}N.={x|mx=1}若N.⊆M.则实数m的取值集合为___
已知函数fx=x3+3mx2+nx+m2在x=-1时有极值0则m+n=.
5.00分设集合A={12}B={x|x2+mx﹣3=0}若A∩B={1}则m=
1
2
3
﹣3
设集合P.={m|-1<m<0}Q.={m∈R.|mx2+4mx-4<0对任意实数x恒成立}则下列关
P.
Q.
Q.
P.
P.=Q.
P.∩Q.=
定义关于x的函数y=mx2+nx与y=nx2+mx其中mn≠0叫做互为交换函数若这两个函数图象的顶
设集合M={x|2x2﹣5x﹣3=0}集合N={x|mx=1m≠0}若M∪N=M则实数m的取值集合
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A:WhatdidyoudolastSaturdayB:Imyuncle.
athardchangeupbeforewinhappendownchoosepractisecomepartLifeisnoteasysoI’dliketosayWhenanything46believeinyourself!WhenIwasayoungboyIwastooshytospeaktoanyone.Myclassmatesoftenlaughed47me.Iwassadbutcoulddonothing.Latersomethinghappenedandit48mylife.ItwasanEnglishspeechcontest.Mymotheraskedmetotake49init.Whataterribleidea!ItmeantIhadtospeak50alltheteachersandstudentsofmyschool!Comeonboy.Believeinyourself!Youaresureto51ThenmotherandItalkedaboutmanydifferenttopics.AtlastI52thetopicBelieveinyourself.Itriedmybesttorememberallthespeechand53itover100times.Withmymother’sgreatloveIdidwellinthecontest.Icould54believemyearswhenthenewscamethatIhadwonthefirstplace.Iheardthecheersfromtheteachersandstudents.Thoseclassmateswhooncelooked55onmeallsaidcongratulationstome.
TheJapaneseMacacamonkeyhasbeenstudiedinthewildforover50years.In1952ononesmallJapaneseislandscientistsdroppedsome16inthedirtforthemonkeys.Themonkeyslikedtheirtastebuttheyfoundthedirt17. Oneclever18-month-oldmonkeyfoundshecould18theproblembywashingthesweetpotatoesinanearbyriver.Shetaughtthistohermother.Her19alsolearnedthisnewwayandtheytaughttheirmotherstoo. Alltheyoungermonkeys20learnedtowashthedirtysweetpotatoestomakethem21toeat.Butmanyoldmonkeysfounditveryhardtolearnthisandstillatethe22sweetpotatoes. Thensomethingverystrange23.Intheautumnof1958scientistsfoundthatthemonkeysonothernearby24beganwashingtheirsweetpotatoestoo.Scientistsstilldon’tfullyunderstandhowthisknowledgewas25fromoneislandtoanother. 17.
试论述掌握知识与发展智力相结合的规律
Livinginaforeignculturecanbeexcitingbutitcanalsobeconfusing令人迷惑的.AgroupofAmericanswhotaughtEnglishinothercountriesrecentlydiscussedtheirexperiences.Theydecidedthatmiscommunicationswerealwayspossibleevenoversomethingassimpleas"yes"and"no". OnherfirstdayinMicronesiaanislandinthePacificLisathoughtpeopleweren’tpayinganyattentiontoher.Thedaywashot.Shewentintoastoreandasked"Doyouhavecolddrinks"Thewomantheredidn’tsayanything.Lisarepeatedthequestion.Stillthewomansaidnothing.Shelaterlearnedthatthewomanhadansweredher:Shehadraisedhereyebrows眉毛whichinMicronesiameans"yes". JanrememberedanexperienceshehadinBulgariaacountryinEurope.Shewenttoarestaurantthatwasknownforitscabbage.Sheaskedthewaiter"Doyouhavecabbagetoday"Henoddedhishead.Janwaitedbutthecabbagenevercame.Inthatcountryanodmeansno. TomhadasimilarproblemwhenhearrivedinIndia.Afterexplainingsomethinginclassheaskedhisstudentsiftheyunderstood.Theyansweredwithmanydifferentnodsandshakesofthehead.Hethoughtsomepeoplehadnotunderstoodsoheexplainedagain.Whenheaskedagaintheydidthesamething.Hesoonfoundoutthathisstudentsdidunderstand.InIndiapeoplenodandshaketheirheadsindifferentwaysdependingonwheretheycomefrom.Youhavetoknowwhereapersonisfromtounderstandwhethertheymean"yes"or"no". Tommisunderstoodhisclassatfirstbecause.
Aroundtheworldmoreandmorepeoplearetakingpartindangeroussportsandactivities.Ofcoursetherehavealwaysbeenpeoplewhohavelookedforadventures—thosewhohaveclimbedthehighestmountainstraveledintounknownpartsoftheworldorsailedinsmallboatsacrossthegreatestoceans.Nowhowevertherearepeoplewholookforanimmediateexcitementfromariskyactivitywhichmayonlylastafewminutesorevenseconds. Iwouldconsiderbungeejumpingtobeagoodexampleofsuchanactivity.Youjumpfromahighplaceperhapsabridgeorahot-airballoon200metersabovethegroundwithanelasticropetiedtoyourankles.Youfallatupto150kilometersanhouruntiltheropestopsyoufromhittingtheground.Itissaidthatabout2millionpeoplearoundtheworldhavenowtriedbungeejumping.Otheractivitieswhichmostpeoplewouldsayareasriskyasbungeejumpingincludejumpingfromtallbuildinganddivingintotheseafromthetopofhighcliff. WhydopeopletakepartinsuchactivitiesastheseSomepsychologistssuggestthatitisbecauselifeinmodemsocietieshasbecomesafeandboring.Notverylongagodiseasescouldnoteasilybecuredandlifewasacontinuousbattleforsurvival. Nowadaysaccordingtomanypeoplelifeofferslittleexcitement.Theyliveandworkincomparativelysafeconditions;theybuyfoodinshops;andtherearedoctorsandhospitalstolookafterthemiftheybecomeill.Theanswerforsomeofthesepeopleistolookfordangerinactivitiessuchasbungeejumping. Abesttitleforthetextis.
Myparentstaughtmenottowastefood.Mymomalwaysfoundwaystomakeleftoverstastegood.IwenttoIlantolearnaboutsomeoftheirspecialfood.AsIwasthereIlearnedaboutthefoodandthehistoryofthearea.Ilearnedthattheydon’twastefoodeitherandtheyuseleftovers! Manyyearsagotherewasnotenoughfoodforeveryone.Peoplelearnedtocookandeatalmosteverything.Theyhadtothinkofwaystomakespecialdishes.Oneofthesedishesiskaozha.It’smadewithleftoverslikemeat;soupoilandfat.Thatmightnotsoundverygoodbutitdoestastegood.Todaykaozhaisaspecialdishatbigbanquets. Anotherfamousdishiscalledzaobing.It’smadewithfruitmeatandotherthings.Ireallylikedit!ButIdidn’twanttoeattoomuch.Ithasalotoffatinit. IsmelledsomethingburningandIsawsmokesoIfoundanotherspecialfoodoftheIlanarea—duckmeat.Theduckmeatisputinabigoventocookit.Smokekeepsthemeatfresh.Idon’tusuallyeatmeatbutthisduckmeatwasdelicious!Ittastedsweet. Ilanisagreatplacewithdeliciousfood.IhopeIcancomebackagain! ShefindsthatpeopleinIlan.
Aroundtheworldmoreandmorepeoplearetakingpartindangeroussportsandactivities.Ofcoursetherehavealwaysbeenpeoplewhohavelookedforadventures—thosewhohaveclimbedthehighestmountainstraveledintounknownpartsoftheworldorsailedinsmallboatsacrossthegreatestoceans.Nowhowevertherearepeoplewholookforanimmediateexcitementfromariskyactivitywhichmayonlylastafewminutesorevenseconds. Iwouldconsiderbungeejumpingtobeagoodexampleofsuchanactivity.Youjumpfromahighplaceperhapsabridgeorahot-airballoon200metersabovethegroundwithanelasticropetiedtoyourankles.Youfallatupto150kilometersanhouruntiltheropestopsyoufromhittingtheground.Itissaidthatabout2millionpeoplearoundtheworldhavenowtriedbungeejumping.Otheractivitieswhichmostpeoplewouldsayareasriskyasbungeejumpingincludejumpingfromtallbuildinganddivingintotheseafromthetopofhighcliff. WhydopeopletakepartinsuchactivitiesastheseSomepsychologistssuggestthatitisbecauselifeinmodemsocietieshasbecomesafeandboring.Notverylongagodiseasescouldnoteasilybecuredandlifewasacontinuousbattleforsurvival. Nowadaysaccordingtomanypeoplelifeofferslittleexcitement.Theyliveandworkincomparativelysafeconditions;theybuyfoodinshops;andtherearedoctorsandhospitalstolookafterthemiftheybecomeill.Theanswerforsomeofthesepeopleistolookfordangerinactivitiessuchasbungeejumping. Inbungeejumpingyou.
TheJapaneseMacacamonkeyhasbeenstudiedinthewildforover50years.In1952ononesmallJapaneseislandscientistsdroppedsome16inthedirtforthemonkeys.Themonkeyslikedtheirtastebuttheyfoundthedirt17. Oneclever18-month-oldmonkeyfoundshecould18theproblembywashingthesweetpotatoesinanearbyriver.Shetaughtthistohermother.Her19alsolearnedthisnewwayandtheytaughttheirmotherstoo. Alltheyoungermonkeys20learnedtowashthedirtysweetpotatoestomakethem21toeat.Butmanyoldmonkeysfounditveryhardtolearnthisandstillatethe22sweetpotatoes. Thensomethingverystrange23.Intheautumnof1958scientistsfoundthatthemonkeysonothernearby24beganwashingtheirsweetpotatoestoo.Scientistsstilldon’tfullyunderstandhowthisknowledgewas25fromoneislandtoanother. 25.
下列选项与赫尔巴特有关的是______
[要求]设计要体现英语课程标准的基本理念遵循语言教学的规律符合教学对象的认知特点和心理特征结构完整条理清晰中英文均可 [教学内容] 1.会说两个问句Doyoulike…Whatisyourfavoritesport/animal/color/fruit 2.对Doyoulike…作肯定和否定回答 Students:Grade3primaryschool
TheJapaneseMacacamonkeyhasbeenstudiedinthewildforover50years.In1952ononesmallJapaneseislandscientistsdroppedsome16inthedirtforthemonkeys.Themonkeyslikedtheirtastebuttheyfoundthedirt17. Oneclever18-month-oldmonkeyfoundshecould18theproblembywashingthesweetpotatoesinanearbyriver.Shetaughtthistohermother.Her19alsolearnedthisnewwayandtheytaughttheirmotherstoo. Alltheyoungermonkeys20learnedtowashthedirtysweetpotatoestomakethem21toeat.Butmanyoldmonkeysfounditveryhardtolearnthisandstillatethe22sweetpotatoes. Thensomethingverystrange23.Intheautumnof1958scientistsfoundthatthemonkeysonothernearby24beganwashingtheirsweetpotatoestoo.Scientistsstilldon’tfullyunderstandhowthisknowledgewas25fromoneislandtoanother. 21.
Myparentstaughtmenottowastefood.Mymomalwaysfoundwaystomakeleftoverstastegood.IwenttoIlantolearnaboutsomeoftheirspecialfood.AsIwasthereIlearnedaboutthefoodandthehistoryofthearea.Ilearnedthattheydon’twastefoodeitherandtheyuseleftovers! Manyyearsagotherewasnotenoughfoodforeveryone.Peoplelearnedtocookandeatalmosteverything.Theyhadtothinkofwaystomakespecialdishes.Oneofthesedishesiskaozha.It’smadewithleftoverslikemeat;soupoilandfat.Thatmightnotsoundverygoodbutitdoestastegood.Todaykaozhaisaspecialdishatbigbanquets. Anotherfamousdishiscalledzaobing.It’smadewithfruitmeatandotherthings.Ireallylikedit!ButIdidn’twanttoeattoomuch.Ithasalotoffatinit. IsmelledsomethingburningandIsawsmokesoIfoundanotherspecialfoodoftheIlanarea—duckmeat.Theduckmeatisputinabigoventocookit.Smokekeepsthemeatfresh.Idon’tusuallyeatmeatbutthisduckmeatwasdelicious!Ittastedsweet. Ilanisagreatplacewithdeliciousfood.IhopeIcancomebackagain! Therearekindsofspecialfoodmentionedinthepassage.
WheneverthesundroppedandtheblueskycameupmyfatherandIusedtoclimbthemountainnearmyhouse.WalkingtogethermyfatherandIusedtohavealotofconversationsthroughwhichIlearnedlessonsfromhisexperiences.Healwaystoldme"Youshouldhavegoalslikeclimbingthemountain."Withoutthemountain-climbingthatwebothenjoyedwecouldn’thaveenoughtimetospendtogetherbecausemyfatherwasverybusy.Ireallygotalotfrommountain-climbing.Itgavemetimetotalkwithmyfatherandtobeindeepthoughtaswellasdevelopmypatience耐力. Onceweclimbedaveryhighmountain.ItwassochallengingformebecauseIwasonlytenyearsold.DuringthefirstfewhoursofclimbingIenjoyedtheflowersandtreesandthebirds’singingbutastimepassedIgotapaininbothofmylegs.Iwantedtoquitclimbing.InfactIhateditatthatmomentbutmyfathersaidtome"Youcanalwaysseeabeautifulskyatthetopofthemountainbutyoucan’tseeitbeforeyoureachthetop.Onlythereatthetopcanyouseeallofthenicethingsjustlikeinlife." AtthattimeIwastooyoungtounderstandhiswords.Butlaterafterthat!gotnewhopeandconfidence信心.Ifoundmyselfstandingatthetopoftheskywhichwasasclearascrystal水晶. Thewordquitinthepassagemeans.
athardchangeupbeforewinhappendownchoosepractisecomepartLifeisnoteasysoI’dliketosayWhenanything46believeinyourself!WhenIwasayoungboyIwastooshytospeaktoanyone.Myclassmatesoftenlaughed47me.Iwassadbutcoulddonothing.Latersomethinghappenedandit48mylife.ItwasanEnglishspeechcontest.Mymotheraskedmetotake49init.Whataterribleidea!ItmeantIhadtospeak50alltheteachersandstudentsofmyschool!Comeonboy.Believeinyourself!Youaresureto51ThenmotherandItalkedaboutmanydifferenttopics.AtlastI52thetopicBelieveinyourself.Itriedmybesttorememberallthespeechand53itover100times.Withmymother’sgreatloveIdidwellinthecontest.Icould54believemyearswhenthenewscamethatIhadwonthefirstplace.Iheardthecheersfromtheteachersandstudents.Thoseclassmateswhooncelooked55onmeallsaidcongratulationstome.
Livinginaforeignculturecanbeexcitingbutitcanalsobeconfusing令人迷惑的.AgroupofAmericanswhotaughtEnglishinothercountriesrecentlydiscussedtheirexperiences.Theydecidedthatmiscommunicationswerealwayspossibleevenoversomethingassimpleas"yes"and"no". OnherfirstdayinMicronesiaanislandinthePacificLisathoughtpeopleweren’tpayinganyattentiontoher.Thedaywashot.Shewentintoastoreandasked"Doyouhavecolddrinks"Thewomantheredidn’tsayanything.Lisarepeatedthequestion.Stillthewomansaidnothing.Shelaterlearnedthatthewomanhadansweredher:Shehadraisedhereyebrows眉毛whichinMicronesiameans"yes". JanrememberedanexperienceshehadinBulgariaacountryinEurope.Shewenttoarestaurantthatwasknownforitscabbage.Sheaskedthewaiter"Doyouhavecabbagetoday"Henoddedhishead.Janwaitedbutthecabbagenevercame.Inthatcountryanodmeansno. TomhadasimilarproblemwhenhearrivedinIndia.Afterexplainingsomethinginclassheaskedhisstudentsiftheyunderstood.Theyansweredwithmanydifferentnodsandshakesofthehead.Hethoughtsomepeoplehadnotunderstoodsoheexplainedagain.Whenheaskedagaintheydidthesamething.Hesoonfoundoutthathisstudentsdidunderstand.InIndiapeoplenodandshaketheirheadsindifferentwaysdependingonwheretheycomefrom.Youhavetoknowwhereapersonisfromtounderstandwhethertheymean"yes"or"no". TheseAmericansteachingEnglishinothercountriesfoundthatthey.
TheJapaneseMacacamonkeyhasbeenstudiedinthewildforover50years.In1952ononesmallJapaneseislandscientistsdroppedsome16inthedirtforthemonkeys.Themonkeyslikedtheirtastebuttheyfoundthedirt17. Oneclever18-month-oldmonkeyfoundshecould18theproblembywashingthesweetpotatoesinanearbyriver.Shetaughtthistohermother.Her19alsolearnedthisnewwayandtheytaughttheirmotherstoo. Alltheyoungermonkeys20learnedtowashthedirtysweetpotatoestomakethem21toeat.Butmanyoldmonkeysfounditveryhardtolearnthisandstillatethe22sweetpotatoes. Thensomethingverystrange23.Intheautumnof1958scientistsfoundthatthemonkeysonothernearby24beganwashingtheirsweetpotatoestoo.Scientistsstilldon’tfullyunderstandhowthisknowledgewas25fromoneislandtoanother. 19.
—SorrydoyoumindifIsmokehere—Yes.
Livinginaforeignculturecanbeexcitingbutitcanalsobeconfusing令人迷惑的.AgroupofAmericanswhotaughtEnglishinothercountriesrecentlydiscussedtheirexperiences.Theydecidedthatmiscommunicationswerealwayspossibleevenoversomethingassimpleas"yes"and"no". OnherfirstdayinMicronesiaanislandinthePacificLisathoughtpeopleweren’tpayinganyattentiontoher.Thedaywashot.Shewentintoastoreandasked"Doyouhavecolddrinks"Thewomantheredidn’tsayanything.Lisarepeatedthequestion.Stillthewomansaidnothing.Shelaterlearnedthatthewomanhadansweredher:Shehadraisedhereyebrows眉毛whichinMicronesiameans"yes". JanrememberedanexperienceshehadinBulgariaacountryinEurope.Shewenttoarestaurantthatwasknownforitscabbage.Sheaskedthewaiter"Doyouhavecabbagetoday"Henoddedhishead.Janwaitedbutthecabbagenevercame.Inthatcountryanodmeansno. TomhadasimilarproblemwhenhearrivedinIndia.Afterexplainingsomethinginclassheaskedhisstudentsiftheyunderstood.Theyansweredwithmanydifferentnodsandshakesofthehead.Hethoughtsomepeoplehadnotunderstoodsoheexplainedagain.Whenheaskedagaintheydidthesamething.Hesoonfoundoutthathisstudentsdidunderstand.InIndiapeoplenodandshaketheirheadsindifferentwaysdependingonwheretheycomefrom.Youhavetoknowwhereapersonisfromtounderstandwhethertheymean"yes"or"no". Thepassageismainlyabout.
——Ihaveaheadache.
Aroundtheworldmoreandmorepeoplearetakingpartindangeroussportsandactivities.Ofcoursetherehavealwaysbeenpeoplewhohavelookedforadventures—thosewhohaveclimbedthehighestmountainstraveledintounknownpartsoftheworldorsailedinsmallboatsacrossthegreatestoceans.Nowhowevertherearepeoplewholookforanimmediateexcitementfromariskyactivitywhichmayonlylastafewminutesorevenseconds. Iwouldconsiderbungeejumpingtobeagoodexampleofsuchanactivity.Youjumpfromahighplaceperhapsabridgeorahot-airballoon200metersabovethegroundwithanelasticropetiedtoyourankles.Youfallatupto150kilometersanhouruntiltheropestopsyoufromhittingtheground.Itissaidthatabout2millionpeoplearoundtheworldhavenowtriedbungeejumping.Otheractivitieswhichmostpeoplewouldsayareasriskyasbungeejumpingincludejumpingfromtallbuildinganddivingintotheseafromthetopofhighcliff. WhydopeopletakepartinsuchactivitiesastheseSomepsychologistssuggestthatitisbecauselifeinmodemsocietieshasbecomesafeandboring.Notverylongagodiseasescouldnoteasilybecuredandlifewasacontinuousbattleforsurvival. Nowadaysaccordingtomanypeoplelifeofferslittleexcitement.Theyliveandworkincomparativelysafeconditions;theybuyfoodinshops;andtherearedoctorsandhospitalstolookafterthemiftheybecomeill.Theanswerforsomeofthesepeopleistolookfordangerinactivitiessuchasbungeejumping. Thewriterofthetexthasaattitudetowardsdangeroussports.
TheJapaneseMacacamonkeyhasbeenstudiedinthewildforover50years.In1952ononesmallJapaneseislandscientistsdroppedsome16inthedirtforthemonkeys.Themonkeyslikedtheirtastebuttheyfoundthedirt17. Oneclever18-month-oldmonkeyfoundshecould18theproblembywashingthesweetpotatoesinanearbyriver.Shetaughtthistohermother.Her19alsolearnedthisnewwayandtheytaughttheirmotherstoo. Alltheyoungermonkeys20learnedtowashthedirtysweetpotatoestomakethem21toeat.Butmanyoldmonkeysfounditveryhardtolearnthisandstillatethe22sweetpotatoes. Thensomethingverystrange23.Intheautumnof1958scientistsfoundthatthemonkeysonothernearby24beganwashingtheirsweetpotatoestoo.Scientistsstilldon’tfullyunderstandhowthisknowledgewas25fromoneislandtoanother. 23.
向量a与b都是非零向量下列说法不正确的是______
athardchangeupbeforewinhappendownchoosepractisecomepartLifeisnoteasysoI’dliketosayWhenanything46believeinyourself!WhenIwasayoungboyIwastooshytospeaktoanyone.Myclassmatesoftenlaughed47me.Iwassadbutcoulddonothing.Latersomethinghappenedandit48mylife.ItwasanEnglishspeechcontest.Mymotheraskedmetotake49init.Whataterribleidea!ItmeantIhadtospeak50alltheteachersandstudentsofmyschool!Comeonboy.Believeinyourself!Youaresureto51ThenmotherandItalkedaboutmanydifferenttopics.AtlastI52thetopicBelieveinyourself.Itriedmybesttorememberallthespeechand53itover100times.Withmymother’sgreatloveIdidwellinthecontest.Icould54believemyearswhenthenewscamethatIhadwonthefirstplace.Iheardthecheersfromtheteachersandstudents.Thoseclassmateswhooncelooked55onmeallsaidcongratulationstome.
已知0<a<1b>1ab>1则下列不等式正确的是.
athardchangeupbeforewinhappendownchoosepractisecomepartLifeisnoteasysoI’dliketosayWhenanything46believeinyourself!WhenIwasayoungboyIwastooshytospeaktoanyone.Myclassmatesoftenlaughed47me.Iwassadbutcoulddonothing.Latersomethinghappenedandit48mylife.ItwasanEnglishspeechcontest.Mymotheraskedmetotake49init.Whataterribleidea!ItmeantIhadtospeak50alltheteachersandstudentsofmyschool!Comeonboy.Believeinyourself!Youaresureto51ThenmotherandItalkedaboutmanydifferenttopics.AtlastI52thetopicBelieveinyourself.Itriedmybesttorememberallthespeechand53itover100times.Withmymother’sgreatloveIdidwellinthecontest.Icould54believemyearswhenthenewscamethatIhadwonthefirstplace.Iheardthecheersfromtheteachersandstudents.Thoseclassmateswhooncelooked55onmeallsaidcongratulationstome.
athardchangeupbeforewinhappendownchoosepractisecomepartLifeisnoteasysoI’dliketosayWhenanything46believeinyourself!WhenIwasayoungboyIwastooshytospeaktoanyone.Myclassmatesoftenlaughed47me.Iwassadbutcoulddonothing.Latersomethinghappenedandit48mylife.ItwasanEnglishspeechcontest.Mymotheraskedmetotake49init.Whataterribleidea!ItmeantIhadtospeak50alltheteachersandstudentsofmyschool!Comeonboy.Believeinyourself!Youaresureto51ThenmotherandItalkedaboutmanydifferenttopics.AtlastI52thetopicBelieveinyourself.Itriedmybesttorememberallthespeechand53itover100times.Withmymother’sgreatloveIdidwellinthecontest.Icould54believemyearswhenthenewscamethatIhadwonthefirstplace.Iheardthecheersfromtheteachersandstudents.Thoseclassmateswhooncelooked55onmeallsaidcongratulationstome.
WheneverthesundroppedandtheblueskycameupmyfatherandIusedtoclimbthemountainnearmyhouse.WalkingtogethermyfatherandIusedtohavealotofconversationsthroughwhichIlearnedlessonsfromhisexperiences.Healwaystoldme"Youshouldhavegoalslikeclimbingthemountain."Withoutthemountain-climbingthatwebothenjoyedwecouldn’thaveenoughtimetospendtogetherbecausemyfatherwasverybusy.Ireallygotalotfrommountain-climbing.Itgavemetimetotalkwithmyfatherandtobeindeepthoughtaswellasdevelopmypatience耐力. Onceweclimbedaveryhighmountain.ItwassochallengingformebecauseIwasonlytenyearsold.DuringthefirstfewhoursofclimbingIenjoyedtheflowersandtreesandthebirds’singingbutastimepassedIgotapaininbothofmylegs.Iwantedtoquitclimbing.InfactIhateditatthatmomentbutmyfathersaidtome"Youcanalwaysseeabeautifulskyatthetopofthemountainbutyoucan’tseeitbeforeyoureachthetop.Onlythereatthetopcanyouseeallofthenicethingsjustlikeinlife." AtthattimeIwastooyoungtounderstandhiswords.Butlaterafterthat!gotnewhopeandconfidence信心.Ifoundmyselfstandingatthetopoftheskywhichwasasclearascrystal水晶. Wecaninfer推断fromthelastparagraphthat.
—It’sreallyhottoday.Whatdrinksdowehaveinthefridge—Wehavesome.
若关于x的方程式x2+1+2ix-3m-1i=0有实根则纯虚数m=
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