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由曲线x2=4y，x2=-4y，x=4，x=-4围成的图形绕y轴旋转一周所得旋转体的体积为Vl；满足x2+y2≤16，x2+（y-2）2≥4，x2+（y+2）2≥4的点（x，y）组成的图形绕y轴旋转...
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信息技术教师招聘考试《单项选择》真题及答案
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求由直线x＝0x＝1y＝0和曲线y＝x2所围成的图形的面积.
根据语句表画出对应的梯形图 0LDX05LDIX4 1ANDX16ANDX5 2LDX27ORB 3
一个关系模式为YX1X2X3X4假定该关系存在如下函数依赖XlX2→X3X2→X4则该关系的码为
X1
X2
(Xl，X2)
(Xl，X2，X3，X4)
下列程序段执行后x5的结果是______publicclassex42{publicstaticvo
11
20
10
12
一个关系模式为YX1X2X3X4假定该关系存在如下函数依赖X1→X2X1→X3X3→X4则该关系属于
设直线y=ax+6为曲线y=lnx+2的切线且y=ax+bx=0．x=4及曲线y=lnx+2围成的图
求曲线y＝2x－x2y＝2x2－4x所围成图形的面积.
一个关系模式为YX1X2X3X4假定该关系存在如下函数依赖X1←→X2X1→X3X1→X4则该关系属
一个关系模式为YX1X2X3X4假定该关系存在如下函数依赖X1x2→X3X2→X4则该关系的码为
X1
X2
(X1，X2)
(X1，X2，X3，X4)
下列选项中不属于CorelDRAWGraphicsSuiteX4三大组件的是
CorelDRAW X4
Corel PHOTO-PAINT X4
Corel CAPimages/tuRE X4
Corel PHOTO-SHOP X4
一个关系模式为YX1X2X3X4假定该关系存在函数依赖X1X2→X3X2→X4则该关系的码为____
X1
X2
(X1，X2)
(X1,X2,X3,X4)
一个关系模式为YX1X2X3X4假定该关系存在如下函数依赖X1X2→X3X2→x4则该关系的码为__
X1
X2
(X1，X2)
(X1，X2，X3，X4)
一个关系模式为YX1X2X3X4假定该关系存在如下函数依赖X1→X2X1→X3X1→X4则该关系属于
由曲线y=x3y=0x=-1x=1所围成图形的面积是
已知函数fx=x-a2x-bab∈Ra
一个关系模式为YX1X2X3X4假定该关系存在如下函数依赖X1X2→X3X2→X4则该关系属于【14
由曲线y＝x2＋4与直线y＝5xx＝0x＝4所围成平面图形的面积是________.
曲线y=2x﹣x2y=2x2﹣4x所围成图形的面积为.
逐点比较法插补加工第一象限逆圆刀具当前位置X4Y2单位为 脉冲当量偏差函数F=0问刀具进给一步后新的
X5, Y2
X3, Y2
X4, Y3
X4, Y1
一个关系模式为YX1X2X3X4假定该关系存在如下函数依赖XlX2→X3X2→X4则该关系的码为
X1
X2
(Xl，X2)
(Xl，X2，X3，X4)
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Behindourhouseisthestartofafascinatingtrail小径.Thistrailisoneoftheoldroadsthatwindthroughuntoldmilesofforest.My36BeansandIwalkthetrailfrequently.NormallyBeanssniffsalongsidethetrailtofollowthesmellofadeertrackorexploresomecauseknownonlytohim. Beansisawhitedogquitehandsomeandverysmart.Henotonlyunderstandswhatwetellhimbutalsooftenmakessoundsasifheweretryingto37back. Onemorningwetookadifferentroutewhichledustoanunfamiliartrail.Iwassurethistrailwouldeventuallyleadustoourfamiliar38.Butno.Weseemedtobefaroffcourse.AftertwohoursIsuddenlyrealizedthatBeansprobably39thewayhome.SoIurged"Beanstakemehome."Herandownanewtrail.Butitmerelyledtoanintersection岔道口oftrails. Soonitbecame40thatweweregettingnowhere.Ibegantopicturetherestofthedayinthe41withoutfoodordrink.Wehadwalkedabouttenmiles.ButBeansseemedtotally42Thesniffingandexploringwasgoingwellforhim. Finallywe43acrossroadnearahighway.LadyLucksuggestedIshouldturnleft.Wedidand44reachedacottagebesideafield.Iknockedonthedoorandexplainedmysituationtoanoldman.Helaughedandthendroveushome. SinceouradventureI45thatBeansprobablyknewallalonghowtogethome. Hewasjusthavingtoomuchfanexploringnewtrails. 43
Ranch.ItwasnearLosAngelesinCaliforniA.AfewyearslaterHollywoodwasoneofthefamousplacesintheworld.Atthebeginningofthe20thcenturytherewasabigfarmcalledHollywood.Fromthe1910’stothe1950’sHollywoodwasthefilmcenteroftheworld.Everyfamilyknewthenamesofitsfilmstars—CharlieChaplinGretaGarboBergmanandhundredsmore.ThereasonwhypeoplewenttoHollywoodtomakefilmswasthesun.AtfirstpeoplemadefilmsinNewYorkontheeastcoastoftheUnitedStates.ButthentheyheardaboutLosAngeleswherethereare350daysofthesuneveryyear.Astheymadeallthefilmsbysunlightthewestcoastwasamuchbetterplacetowork.AlsonearHollywoodyoucanfindmountainsandseaanddesert.Theydidnothavetotravelfartomakeanykindoffilm.WhenTVbecamepopularHollywoodstartedmakingfilmsfortelevision.Theninthe1970’stheydiscoveredpeoplestillwenttothecinematoseebigexpensivefilms.NowadaystheyarestillmakingfilmsinHollywoodandpeopleseethemallovertheworld.PeoplewenttoHollywoodtomakefilmsbecause______.
假设你将参加某英语杂志社开展的一次征文活动征文的内容要求你在电视手机cell和网络三者中放弃其中一个并陈述理由请你以WhichwouldyougiveupTVcellorWeb为题写一篇英语短文注意1．词数在100词左右2．可以适当增加细节以使行文连贯
Behindourhouseisthestartofafascinatingtrail小径.Thistrailisoneoftheoldroadsthatwindthroughuntoldmilesofforest.My36BeansandIwalkthetrailfrequently.NormallyBeanssniffsalongsidethetrailtofollowthesmellofadeertrackorexploresomecauseknownonlytohim. Beansisawhitedogquitehandsomeandverysmart.Henotonlyunderstandswhatwetellhimbutalsooftenmakessoundsasifheweretryingto37back. Onemorningwetookadifferentroutewhichledustoanunfamiliartrail.Iwassurethistrailwouldeventuallyleadustoourfamiliar38.Butno.Weseemedtobefaroffcourse.AftertwohoursIsuddenlyrealizedthatBeansprobably39thewayhome.SoIurged"Beanstakemehome."Herandownanewtrail.Butitmerelyledtoanintersection岔道口oftrails. Soonitbecame40thatweweregettingnowhere.Ibegantopicturetherestofthedayinthe41withoutfoodordrink.Wehadwalkedabouttenmiles.ButBeansseemedtotally42Thesniffingandexploringwasgoingwellforhim. Finallywe43acrossroadnearahighway.LadyLucksuggestedIshouldturnleft.Wedidand44reachedacottagebesideafield.Iknockedonthedoorandexplainedmysituationtoanoldman.Helaughedandthendroveushome. SinceouradventureI45thatBeansprobablyknewallalonghowtogethome. Hewasjusthavingtoomuchfanexploringnewtrails. 45
WhenItalkedwithmygrandmaonthephoneshesoundedweakbutbythetimewe______uphervoicehadbeenfulloflife.
Whenandwheretobuildthenewfactory______yet.
Iwillalwaysremembermymother’slastfewdaysinthisworld.OnFebruary14th2000myclasswentonafieldtriptothebeach.Ihadsomuchfun.Whenwereturnedtoschoolmyteachertoldmetogototheheadmaster’soffice.WhenIgotintotheofficeIsawapoliceofficer.SuddenlyIrealizedsomethingwaswrong.Thepoliceofficertoldmewhathadhappenedandwewenttopickmysisterup.Afterthatwewenttothehospitalandwaited.Timewentslowly.Finallywegottoseeourmother.Itwasterrible.Onthenextdaytheheadmastercameandtoldmytwoteacherswhathadhappened.Iwastakingarestthatday.Iknewithadsomethingtodowithmymother.Ikeptthinkingthatsheeitherdiedorhadgottenbetter.HowIwishedthatshehadgottenbetter.Whenmyteachertookmeoutsidemysisterranuptome.ShestartedcryingShe’sgone.Teresamommy’sgone.She’sdead.Icouldn’tbelieveit.Wejumpedintothecaranddrovestraighttothehospital.Mostofmyfamilywerethere.Thesilencewasterrible.IknewIhadtosaygoodbye.TodaywhenIlookbackIstillmissmymotherverymuchbutIknowthatIwilllive.Mymotherwasastrongmotherwhohadthebiggestheart.Mymotherwasanangelwalkingontheearth.Iwillalwaysrememberherasliving.WhensomeoneisaskedwhotheirheroistheyusuallysaysomeonefamouslikeMichaelJordanorBritneySpears.WhensomeoneasksmewhomyheroisItellthemmymother.Mymotherliveseveryday.Thatiswhatmakesheratruehero.Fromthelastparagraphofthepassageweknowthat
Theyusedtoquarrelalotbutnowtheyarecompletely______witheachother.
Thepolicestillhaven'tfoundherbutthey'redoingallthey
WhereisloveHowcanwefindloveThepastagesofmanhaveallbeencarefullylabeledbyanthropologists.DescriptionslikePaleolithicManNeolithicManetc.neatlysumupthewholeperiods.WhenthetimecomesforanthropologiststoturntheirattentiontothetwentiethcenturytheywillsurelychoosethelabelLeglessMan.Historiesofthetimewillgosomethinglikethis:inthetwentiethcenturypeopleforgothowtousetheirlegs.Menandwomenmovedaboutincarsbusesandtrainsfromaveryearlyage.Therewereliftsandescalatorsinalllargebuildingstopreventpeoplefromwalking.Thissituationwasforceduponearthdwellersofthattimebecauseofmileseachday.Butthesurprisingthingisthattheydidn’tusetheirlegsevenwhentheywentonholiday.Theybuiltcablerailwaysskiliftsandroadstothetopofeveryhugemountain.Allthebeautyspotsonearthweremarredbythepresenceoflargecarparks.Thefuturehistorybooksmightalsorecordthatweweredeprivedoftheuseofoureyes.Inourhurrytogetfromoneplacetoanotherwefailedtoseeanythingontheway.Airtravelgivesyouabird’seyeviewoftheworld—orevenlessifthewingoftheaircrafthappenstogetinyourway.Whenyoutravelbycarortrainablurredimageofthecountrysideconstantlysmearsthewindows.Cardriversinparticularareforeverobsessedwiththeurgetogoonandon:theyneverwanttostop.IsitthelureofthegreatmotorwaysorwhatAndasforseatravelithardlydeservesmention.Itisperfectlysummedupinthewordsoftheoldsong:IjoinedthenavytoseetheworldandwhatdidIseeIsawthesea.ThetypicaltwentiethcenturytraveleristhemanwhoalwayssaysI’vebeenthere.YoumentiontheremotestmostevocativeplacenamesintheworldlikeE1DoradoKabulIrkutskandsomeoneisboundtosayI’vebeenthere—meaningIdrovethroughitat100milesanhouronthewaytosomewhereelse.Whenyoutravelathighspeedthepresentmeansnothing:youlivemainlyinthefuturebecauseyouspendmostofyourtimelookingforwardtoarrivingatsomeotherplace.Butactualarrivalwhenitisachievedismeaningless.Youwanttomoveonagain.Bytravelinglikethisyoususpendallexperience;thepresentceasestobeareality:youmightjustaswellbedead.Thetraveleronfootontheotherhandlivesconstantlyinthepresent.Forhimtravelingandarrivingareoneandthesamething:hearrivessomewherewitheverystephemakes.Heexperiencesthepresentmomentwithhiseyeshisearsandthewholeofhisbody.Attheendofhisjourneyhefeelsadeliciousphysicalweariness.Heknowsthatsound.Satisfyingsleepwillbehis:thejustrewardofalltruetravelers.Travellingathighspeedmeans______.
中学阶段为调动学生的积极性培养学生独立地研究问题获得知识发展各种能力教学中应多选用______
Iwillalwaysremembermymother’slastfewdaysinthisworld.OnFebruary14th2000myclasswentonafieldtriptothebeach.Ihadsomuchfun.Whenwereturnedtoschoolmyteachertoldmetogototheheadmaster’soffice.WhenIgotintotheofficeIsawapoliceofficer.SuddenlyIrealizedsomethingwaswrong.Thepoliceofficertoldmewhathadhappenedandwewenttopickmysisterup.Afterthatwewenttothehospitalandwaited.Timewentslowly.Finallywegottoseeourmother.Itwasterrible.Onthenextdaytheheadmastercameandtoldmytwoteacherswhathadhappened.Iwastakingarestthatday.Iknewithadsomethingtodowithmymother.Ikeptthinkingthatsheeitherdiedorhadgottenbetter.HowIwishedthatshehadgottenbetter.Whenmyteachertookmeoutsidemysisterranuptome.ShestartedcryingShe’sgone.Teresamommy’sgone.She’sdead.Icouldn’tbelieveit.Wejumpedintothecaranddrovestraighttothehospital.Mostofmyfamilywerethere.Thesilencewasterrible.IknewIhadtosaygoodbye.TodaywhenIlookbackIstillmissmymotherverymuchbutIknowthatIwilllive.Mymotherwasastrongmotherwhohadthebiggestheart.Mymotherwasanangelwalkingontheearth.Iwillalwaysrememberherasliving.WhensomeoneisaskedwhotheirheroistheyusuallysaysomeonefamouslikeMichaelJordanorBritneySpears.WhensomeoneasksmewhomyheroisItellthemmymother.Mymotherliveseveryday.Thatiswhatmakesheratruehero.Whobroughtthewriterthebadnewsthathermotherwasill______
影响自我效能感形成的因素有______
Behindourhouseisthestartofafascinatingtrail小径.Thistrailisoneoftheoldroadsthatwindthroughuntoldmilesofforest.My36BeansandIwalkthetrailfrequently.NormallyBeanssniffsalongsidethetrailtofollowthesmellofadeertrackorexploresomecauseknownonlytohim. Beansisawhitedogquitehandsomeandverysmart.Henotonlyunderstandswhatwetellhimbutalsooftenmakessoundsasifheweretryingto37back. Onemorningwetookadifferentroutewhichledustoanunfamiliartrail.Iwassurethistrailwouldeventuallyleadustoourfamiliar38.Butno.Weseemedtobefaroffcourse.AftertwohoursIsuddenlyrealizedthatBeansprobably39thewayhome.SoIurged"Beanstakemehome."Herandownanewtrail.Butitmerelyledtoanintersection岔道口oftrails. Soonitbecame40thatweweregettingnowhere.Ibegantopicturetherestofthedayinthe41withoutfoodordrink.Wehadwalkedabouttenmiles.ButBeansseemedtotally42Thesniffingandexploringwasgoingwellforhim. Finallywe43acrossroadnearahighway.LadyLucksuggestedIshouldturnleft.Wedidand44reachedacottagebesideafield.Iknockedonthedoorandexplainedmysituationtoanoldman.Helaughedandthendroveushome. SinceouradventureI45thatBeansprobablyknewallalonghowtogethome. Hewasjusthavingtoomuchfanexploringnewtrails. 39
I'd______hisreputationwithotherfarmersandbusinesspeopleinthecommunityandthenmakeadecisionaboutwhetherornottoapprovealoan.
—Hashefinishedhisessay —Idon'tknow.Heitthismorning.
Iwillalwaysremembermymother’slastfewdaysinthisworld.OnFebruary14th2000myclasswentonafieldtriptothebeach.Ihadsomuchfun.Whenwereturnedtoschoolmyteachertoldmetogototheheadmaster’soffice.WhenIgotintotheofficeIsawapoliceofficer.SuddenlyIrealizedsomethingwaswrong.Thepoliceofficertoldmewhathadhappenedandwewenttopickmysisterup.Afterthatwewenttothehospitalandwaited.Timewentslowly.Finallywegottoseeourmother.Itwasterrible.Onthenextdaytheheadmastercameandtoldmytwoteacherswhathadhappened.Iwastakingarestthatday.Iknewithadsomethingtodowithmymother.Ikeptthinkingthatsheeitherdiedorhadgottenbetter.HowIwishedthatshehadgottenbetter.Whenmyteachertookmeoutsidemysisterranuptome.ShestartedcryingShe’sgone.Teresamommy’sgone.She’sdead.Icouldn’tbelieveit.Wejumpedintothecaranddrovestraighttothehospital.Mostofmyfamilywerethere.Thesilencewasterrible.IknewIhadtosaygoodbye.TodaywhenIlookbackIstillmissmymotherverymuchbutIknowthatIwilllive.Mymotherwasastrongmotherwhohadthebiggestheart.Mymotherwasanangelwalkingontheearth.Iwillalwaysrememberherasliving.WhensomeoneisaskedwhotheirheroistheyusuallysaysomeonefamouslikeMichaelJordanorBritneySpears.WhensomeoneasksmewhomyheroisItellthemmymother.Mymotherliveseveryday.Thatiswhatmakesheratruehero.Wherewasthewriterwhenshelearnedhermotherwasveryill______
WhereisloveHowcanwefindloveThepastagesofmanhaveallbeencarefullylabeledbyanthropologists.DescriptionslikePaleolithicManNeolithicManetc.neatlysumupthewholeperiods.WhenthetimecomesforanthropologiststoturntheirattentiontothetwentiethcenturytheywillsurelychoosethelabelLeglessMan.Historiesofthetimewillgosomethinglikethis:inthetwentiethcenturypeopleforgothowtousetheirlegs.Menandwomenmovedaboutincarsbusesandtrainsfromaveryearlyage.Therewereliftsandescalatorsinalllargebuildingstopreventpeoplefromwalking.Thissituationwasforceduponearthdwellersofthattimebecauseofmileseachday.Butthesurprisingthingisthattheydidn’tusetheirlegsevenwhentheywentonholiday.Theybuiltcablerailwaysskiliftsandroadstothetopofeveryhugemountain.Allthebeautyspotsonearthweremarredbythepresenceoflargecarparks.Thefuturehistorybooksmightalsorecordthatweweredeprivedoftheuseofoureyes.Inourhurrytogetfromoneplacetoanotherwefailedtoseeanythingontheway.Airtravelgivesyouabird’seyeviewoftheworld—orevenlessifthewingoftheaircrafthappenstogetinyourway.Whenyoutravelbycarortrainablurredimageofthecountrysideconstantlysmearsthewindows.Cardriversinparticularareforeverobsessedwiththeurgetogoonandon:theyneverwanttostop.IsitthelureofthegreatmotorwaysorwhatAndasforseatravelithardlydeservesmention.Itisperfectlysummedupinthewordsoftheoldsong:IjoinedthenavytoseetheworldandwhatdidIseeIsawthesea.ThetypicaltwentiethcenturytraveleristhemanwhoalwayssaysI’vebeenthere.YoumentiontheremotestmostevocativeplacenamesintheworldlikeE1DoradoKabulIrkutskandsomeoneisboundtosayI’vebeenthere—meaningIdrovethroughitat100milesanhouronthewaytosomewhereelse.Whenyoutravelathighspeedthepresentmeansnothing:youlivemainlyinthefuturebecauseyouspendmostofyourtimelookingforwardtoarrivingatsomeotherplace.Butactualarrivalwhenitisachievedismeaningless.Youwanttomoveonagain.Bytravelinglikethisyoususpendallexperience;thepresentceasestobeareality:youmightjustaswellbedead.Thetraveleronfootontheotherhandlivesconstantlyinthepresent.Forhimtravelingandarrivingareoneandthesamething:hearrivessomewherewitheverystephemakes.Heexperiencesthepresentmomentwithhiseyeshisearsandthewholeofhisbody.Attheendofhisjourneyhefeelsadeliciousphysicalweariness.Heknowsthatsound.Satisfyingsleepwillbehis:thejustrewardofalltruetravelers.Whatisthepurposeoftheauthorinwritingthispassage
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Timisingoodshapephysically______hedoesn'tgetmuchexercise.
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为什么说英语语法教学是基于语法学习而存在的
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普通语言学可以帮助人们认识和掌握英语教学的
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ItisprobablyeasierforteachersthanforstudentstoappreciatethereasonswhylearningEnglishseemstobecomeincreasinglydifficultoncethebasicstructuresandpatternsofthelanguagehavebeenunderstood．
Behindourhouseisthestartofafascinatingtrail小径.Thistrailisoneoftheoldroadsthatwindthroughuntoldmilesofforest.My36BeansandIwalkthetrailfrequently.NormallyBeanssniffsalongsidethetrailtofollowthesmellofadeertrackorexploresomecauseknownonlytohim. Beansisawhitedogquitehandsomeandverysmart.Henotonlyunderstandswhatwetellhimbutalsooftenmakessoundsasifheweretryingto37back. Onemorningwetookadifferentroutewhichledustoanunfamiliartrail.Iwassurethistrailwouldeventuallyleadustoourfamiliar38.Butno.Weseemedtobefaroffcourse.AftertwohoursIsuddenlyrealizedthatBeansprobably39thewayhome.SoIurged"Beanstakemehome."Herandownanewtrail.Butitmerelyledtoanintersection岔道口oftrails. Soonitbecame40thatweweregettingnowhere.Ibegantopicturetherestofthedayinthe41withoutfoodordrink.Wehadwalkedabouttenmiles.ButBeansseemedtotally42Thesniffingandexploringwasgoingwellforhim. Finallywe43acrossroadnearahighway.LadyLucksuggestedIshouldturnleft.Wedidand44reachedacottagebesideafield.Iknockedonthedoorandexplainedmysituationtoanoldman.Helaughedandthendroveushome. SinceouradventureI45thatBeansprobablyknewallalonghowtogethome. Hewasjusthavingtoomuchfanexploringnewtrails. 41
Opinionpollsarenowbeginningtoshowthatwhoeveristoblameandwhateverhappensfromnowonhighunemploymentisprobablyheretostay.Thismeansweshallhavetofindwaysofsharingtheavailableemploymentmorewidely.Butweneedtogofurther.Wemustasksomefundamentalquestionsaboutthefuturework.ShouldwecontinuetotreatemploymentasthenormShouldwenotratherencouragemanywaysforself-respectingpeopletoworkShouldwenotcreateconditionsinwhichmanyofuscanworkforourselvesratherthanforanemployerShouldwenotaimtorevivethehouseholdandtheneighborhoodaswellasthefactoryandtheofficeascentersofproductionandworkTheindustrialagehasbeentheonlyperiodofhumanhistoryinwhichmostpeople’sworkhastakentheformofjobs.Theindustrialagemaynowbecomingtoanendandsomeofthechangesinworkpatternswhichitbroughtmayhavetobereversed.Thisseemsadauntingthought.Butinfactitcouldoffertheprospectofabetterfutureforwork.Universalemploymentasitshistoryshowshasnotmeanteconomicfreedom.Employmentbecamewidespreadwhentheenclosuresofthe17thand18thcenturiesmademanypeopledependentonpaidworkbydeprivingthemoftheuseofthelandandthusofthemeanstoprovidealivingforthemselves.Thenthefactorysystemdestroyedthecottageindustriesandremovedworkfrompeople’shomes.Laterastransportimprovedfirstbyrailandthenbyroadpeoplecommutedlongerdistancestotheirplacesofemploymentuntileventuallymanypeople’sworklostallconnectionwiththeirhomelivesandtheplacesinwhichtheylive.Meanwhileemploymentputwomenatadisadvantage.Inpreindustrialtimesmenandwomenhadsharedtheproductiveworkofthehouseholdandvillagecommunity.Nowitbecamecustomaryforthehusbandtogoouttopaidemploymentleavingtheunpaidworkofthehomeandfamiliestohiswife.Taxandbenefitregulationsstillassumethisnormtodayandrestrictmoreflexiblesharingofworkrolesbetweenthesexes.Itwasnotonlywomenwhoseworkstatussuffered.Asemploymentbecamethedominantformofworkyoungpeopleandoldpeoplewereexcluded—aproblemnowasmoreteenagersbecomefrustratedatschoolandmoreretiredpeoplewanttoliveactivelives.Allthismaynowhavetochange.Thetimehascertainlycometoswitchsomeeffortandresourcesawayfromtheidealistgoalcrea-tingjobsforalltotheurgentpracticaltaskofhelpingmanypeopletomanagewithoutfull-timejobs.Whatisthemainideaofthepassage
Howmuch______shelookedwithoutherglasses!
—Is______here—NoBobisillathome.
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