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一组数据2，3，5，x，7，4，6，9的众数是4，则这组数据的中位数是（ ）
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一组数据为22345556则下列说法正确的是
这组数据的众数是2
这组数据的平均数是3
这组数据的极差是4
这组数据的中位数是5
一组数据23x57的平均数是4则这组数据的众数是.
.有一组数据34566则下列四个结论中正确的是
这组数据的平均数、众数、中位数分别是4.8， 6， 6
这组数据的平均数、众数、中位数分别是5， 5， 5
这组数据的平均数、众数、中位数分别是4.8， 6， 5
这组数据的平均数、众数、中位数分别是5， 6， 6
已知一组数据1xy495有唯一众数4且平均数是5则这组数据的中位数是
.一组数据是4x51011共五个数其平均数为7则这组数据的众数是
4
5
10
11
一组数据235x7469的众数是4则这组数据的中位数是
4
5
已知一组数据3a45的众数为4则这组数据的平均数为
3
4
5
6
如果一组数据按从小到大排列为124x69且这组数据的中位数为5那么这组数据的众数为
4
5
5.5
6
已知一组数据1a367它的平均数是4这组数据的众数是.
如果一组数据67x95的平均数是2x那么这组数据的方差为
4
3
2
1
下面说法①如果一组数据的众数是5那么这组数据中出现次数最多的数是5②如果一组数据的平均数是0那么这组
1
2
3
4
已知一组数据4x5y79的平均数为6众数为5则这组数据的中位数是
若一组数据１４４５６４ｘ的平均数等于这组数据的众数则ｘ＝.
若一组数据１４４５６４ｘ的平均数等于这组数据的众数则ｘ＝.[来源:学§科§网]
已知一组数据34456747那么这组数据的
）中位数是5.5，众数是4 （
）中位数是5，平均数是5 （
）中位数是5，众数是4 （
）中位数是4.5，平均数是5
一组数据23x57的平均数是4则这组数据的众数是.
已知一组数据x1＝4x2＝5x3＝6x4＝7它们出现的次数依次为2321则这组数据的众数为中位数为平
一组数据为235734对于这组数据下列说法错误的是
平均数是4
极差是5
众数是3
中位数是6
已知一组数据3a459的众数是4则这组数据的平均数是
4
5
6
7
一组数据24x247的众数是2则这组数据的平均数中位数分别为
3.5,3
3,4
3,3.5
4,3
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垃圾分类不仅有助于环境保护还有利于废物循环利用所以人人要行动起来.Notonly
Twoheadsarebetterthanoneaccordingtotheoldsaying.Sowhyaregroupswithlotsofheadsknownformakingbaddecisions?Whydoesgroupthinkimmediatelymeanineffectivenessandmistakes? ThesequestionsareansweredinafascinatingnewbookcalledWiser:GettingBeyondGroupthinktoMakeGroupsSmarterwrittenbyCassR.SunsteinaformerWhiteHouseofficialandReidHastieanacademicspecializedinthepsychologyofdecisionmaking.BuildingontheircombinedexperiencesandresearchSunsteinandHastieanalyzewhatgoeswrongingroupdecision﹣makingandthenofferclear﹣outsolutionstoovercometheseproblems. Groupdecision﹣makinginvolvesdiscussionsamongmembersofagroupeachwiththeirownskillsexperienceideasandinformation.Unfortunatelyastheauthorsexplaintherearetwotypesofinfluenceongroupmembers﹣informationalsignalsandsocialpressures﹣whichskew扭曲thediscussions.Informationalsignalscausepeopletokeepinformationtothemselveswhenitdisagreeswithinformationfromothersespeciallyleaders.Socialpressurescausepeopletokeepinformationtothemselvestoavoidpunishmentfromleaderswhoaredenied. Theseinfluencesleadtofourproblemstheauthorswrite:Insteadofcorrectingtheerrorsoftheirmembersgroupsactuallyexpandthoseerrorscascadeeffects联级效应takeoverwhenthegroupfollowswhomeverspokefirstorloudestgroupsbecomemoreextremeintheirideasastheinternaldiscussionsstrengthentheirpredisposed预先有倾向的thoughtsandgroupsfocusonsharedinformationinsteadofunsharedinformation. Havinglaidoutthecoreproblemstheauthorsoffersolutions.Theybeginwithalistofmethodsaimedathandlingthefourcoreproblemssuchas: Leadershavetokeepquietandconvincegroupmembersthattheysincerelywanttohearallideas. Groupsuccessshouldberewarded.Groupmembersmustunderstandthatifthegroupisrighteveryonebenefitsthiswillencouragethemtoensurethattheyfindtherightanswerinsteadofpushingtheirownideas. Groupmembersshouldbeassignedspecificrolesthusensuringthateveryonecontributes. Eitherindividualsorassignedteamsshouldbetaskedwithactingasdevil'sadvocates唱反调的人. Groupsalsofailtheauthorwritesbecausetheydon'tdistinguishbetweentheearlyroundsofdiscussionsinwhichallideasmustbeallowedonthetableandthefinalroundsofdiscussionsinwhichgroupsmustbetightandanalyticalastheyseektheaccuratesolution.Successfulgroupswilldeliberatelyseparatethetwoprocesses. Inanotherapproachtheauthorsdemonstratethatthewisdomofcrowdswilloftenleadtotherightanswerifamajorityofcrowdmembersknowtheirmaterial.Decision﹣makersoftenprefertorelyononesingleexpertbutchasingtheexpertsignificantlyreducestheprobabilityofgettingthedecisionright. Wiserisaquickengagingandthoughtfulreadthatconvincinglyarguesthatwithafewsimplestepsandopen﹣mindedleadershipgroupdiscussionscanindeedleadtowiserdecisions. 1Thepassageismainlywrittento. A.makeanadvertisementforanewbook B.introducethemainpointsofanewbook C.provethattwoheadsarebetterthanone D.showhowtomakegroupthinkmoreeffective 2Accordingtothepassagegroupssometimesmakebaddecisionsbecausesomemembers. A.arecriticalofothers B.arepunishedbytheleader C.disagreewiththeleader D.donotsharedifferentideas 3Whichofthefollowingcanhelpimprovetheeffectivenessofgroupthink? A.Anexperthelpstomakethefinaldecision. B.Teamsuccessisadvocatedwithpositivemeasures. C.Nooneisallowedtoputforwardtheirdisagreement. D.Leadersdon'texpresstheirownopinionsintheprocess. 4Whatcanbeinferredfromthepassage? A.Wisermaybewelcomedbydecision﹣makers. B.Wisercanchangedecision﹣makers'attitudetowardswork. C.Themorepeopleinthegroupthebetterdecisionwillbemade. D.Thefinalroundsofdiscussionsarethemostimportantindecision﹣making.
Extremophiles极端微生物areorganismsthathavebeendiscoveredonearththatsurviveinenvironmentsthatwereoncethoughtnottobeabletosustainlife.Theseextremeenvironmentsincludeintenseheathighlyacidicenvironmentsextremepressureandextremecold.DifferentorganismshavedevelopedvaryingwaysofadaptingtotheseenvironmentsbutmostscientistsagreethatitisunlikelythatlifeonEarthoriginatedundersuchextremes. AdaptingtoExtremeHeat Inthe1960sheatresistantbacteriawerediscoveredinhotspringsinYellowstoneNationalPark.Thisbacteriathermusaquaticusthrivesattemperaturesof70°Cbutcansurvivetemperaturesof50°Cto80°C.Afewyearsafterthesewerediscoveredotherbacteriawerefoundlivingunderevenmoreextremeconditions.Hydrothermalvents热水流火山口werediscovereddeepintheoceanandundersuchhighpressurethatthewaterboilsat340°C.Itwasasurprisetoresearcherstodiscoverbacterialivingandthrivingintheventsatsuchextremetemperaturesandpressures.Notonlyweretherebacteriabutcentimetersawaywherethewaterwascoolerwasacompleteecosystemlivingoffthebacteria.Therewereclamsandtubewormsamongotherspecies. AdaptingtoExtremeCold Otherextremophileshavedevelopedwaystocopewithcold.Deepoceanwaterisasafairlyconstanttemperatureof2°Cbutbecauseofitssaltcontentincolderareasoceanwatercanreachtemperaturesaslowat﹣12°Cwithoutfreezing.Extremophilesknownaspsychrophiles低温微生物areknowntosurviveattheselowtemperatures.Differentspecieshavecomeupwithdifferentwaystosurvivethesecoldtemperatures.Somehavedevelopedsubstancessuchasglycerol甘油orantifreezeproteinswhichlowerthefreezingpointofwaterbyseveraldegrees. Themaindangertoorganismsoffreezingisthedamagecausedbyicecrystalsaswaterfreezesandexpands.Somespeciesoffrogsandturtleshaveproteinswhichactuallyfacilitatethefreezingofbodyliquids.Iftheanimal'sbodyliquidsbegintofreezeachainreactionisstartedandallofthebody'sliquidsfreezerapidly.Thispreventstheformationoficecrystalslargeenoughtodoanydamage.Manykindsofmicroorganismscansurvivefreezingandthawingaslongastheproblemoficecrystalsisavoided. 66.Anecosystemparagraph2canbebestdescribedas. A.aninteractingcommunitythatcontainsbothlivingandnon﹣livingorganisms B.alargecollectivetermforanimalsthateatbacteria C.differenttypesofplantsandanimalsthatcooperateforfood D.theplacewheretemperaturesandconditionsaredangerousandextreme 67.Theformationoflargeicecrystalisdangerousmostlybecause. A.theanimalcannolongerbreatheandnutrientcan'tbecarriedaroundthebody B.proteinscausetheanimal'sbodyliquidstofreeze C.thefreezingandexpansionofwatercoulddamagetheanimal'sorgans D.thetemperatureinsidetheanimalbecomestoocoldtosurvivein 68.WhichofthefollowingstatementsisFALSEaccordingtothepassage? A.Extremophilesliveinenvironmentsotherorganismscannotsurvivein. B.Extremophilescansurviveinbothacidicandhighpressureenvironments. C.Thethermophilelivesinextremelyhightemperatures. D.Freshwaterhasaconstanttemperatureofaround2°C. 69.Thepurposeofthisarticleisto. A.amuseandentertainscientists B.provideapersonalopinionaboutanissue C.educateandinformreaders D.predictthebeginningofevolution.
8分OnedayIwaswalkingaroundinanationalparkwhenIsawabeautifultarantula狼蛛crossingapath.Ijuststoppedanddecidedtoobserveitswalking. Behindmetherewasafamilygoingupthesamewayandtheyalsonoticedthetarantula.WithoutdoubtingitakidshoutedQuickDadkillit.Hisbrotheralsoencouragedtheirdadtodothat. ThenIstoppedtheirdad.Wait.Thisisthelastplacethetarantulahastolivein.Doyoureallywanttokillit? Wellit'sdangerousandwehavekidshere… Whynotstandstillandletitcrosssafely?Thenyoucangoandadmiretherestofthepark. AftersomediscussionsIpersuadedthemtostandstillandwatch.Soonthetarantulacrossedandhidintothebushes. TheirdadthankedmeandsaidYou'reright.Iwasabouttomakeamistake.Thechildrenevensaidgoodbyetothetarantulaandtheylearnedsomethingtoo. 1Whatdidthefamilywanttodoonseeingthetarantula? A.Towatchit. B.Tokillit. C.Tostandby. D.Tohideaway. 2Whatdidthedadthinkofthetarantula? A.Dangerous. B.Interesting. C.Powerful. D.Beautiful. 3Whatistheauthor'sadviceonhowtodealwiththetarantula? A.Tostopitquickly. B.Togreetitpolitely. C.Toletitcrosssafely. D.Todriveitintothebushes. 4Whatmaythekidslearnfromtheexperience? A.Staycalmintimeofdanger. B.Enjoythebeautyofnature. C.Stayawayfromanimals. D.Treatthewildlifekindly.
20分学校学生会将举办一次题为LIFEBALANCE的征文活动请根据下面活动举办方提供的图片写一篇征文.你的文章必须包括以下内容: •解读图片内容 •简单阐述你的观点. 文中不能使用真实的人名和校名
SmartPhoneApplicationTracksMentalHealth Militaryserviceisobviouslyroughonaservicemember'smentalhealth.Accordingtosome130percentofservicemembersdevelopsometypeofmentalhealthissuewithinfourmonths ofreturninghomeafterleavingthearmy. Themilitaryisspendingmoremoneythaneverto2mentalhealthissueswithintheranksandtheirlatestattemptisasmartphoneapplicationcalledtheT2MoodTrackerapplicationwhichhelpsservicememberskeeptrackoftheirmentalhealthafterleavingthearmy.Theappworkslikeahigh﹣techdiaryallowingusersto3emotionsandbehaviorsthatresultfromtherapymedicationdailyexperiencesorchangeshappeningatworkorinthehome.Thesmartphoneappisn'tsupposedtobeapocket4though.Itservesmoreasanextremelyaccurateand5recordofaservicemember'smentalhealth. PerryBosmajianisapsychologistwiththeNationalCenterforTeleHealthandTechnologywherethissmartphoneappwascreated.Hesaysthissmartphoneappwillproducemuchmoreaccurateresultsonthe6conditionsofservicememberswhohavereturnedhome.Therapistsandphysiciansoftenhavetorelyonpatient7whentryingtogatherinformationaboutsymptomsoverthepreviousweeksormonthsBosmajiansaid.Researchhasshownthatinformationcollectedafterthefactespeciallyaboutmoodtendstobe8.Thebestrecordofanexperienceiswhenit'srecordedatthetimeandplaceithappens. Theappspecificallytracksanxietydepressiongeneralwell﹣beinglifestresspost﹣traumatic受伤后的stressandbraininjury.Thedailyexpressionsaddupovertimetoproducean9thatcanbeobservedbyphysiciansandtherapists. Theapphasbeendownloadedmorethan5000timessinceitbecame10ontheAndroidMarketayearago.UsersofiPhonescanalsohaveaccesstotheappsometimenextyear.
若a≠0则+1的值为
2分一个人大笑时其体内的一切都会运作得更健康更有效率.operateEverythinginhisbodyoperatesinahealthywaymoreefficientlywhenaperson laughs..
WhenIreturnedtothecommonthesunwassetting.Thecrowdaroundtheholehadincreasedandstoodoutblackagainstthelemonyellowofthesky﹣acoupleofhundredpeopleperhaps.TherewerereallyIshouldthinktwoorthreehundredpeopleelbowingoneanothertheoneortwoladiestherebeingbynomeanstheleastactive.He'sfalleninthehole!criedsomeone.Keepback!saidseveral.ThecrowdmovedalittleandIelbowedmywaythrough.Everyoneseemedgreatlyexcited.Iheardapeculiarhummingsoundfromthehole. Isay!saidOgilvyhelpkeeptheseidiotsback.Wedon'tknowwhat'sinthepuzzlingthingyouknow! Theendofthecylinder圆柱体wasbeingscrewedoutfromwithin.IturnedandasIdidsothescrew螺丝钉musthavecomeoutforthelidofthecylinderfelluponthegroundwitharingingshock.Foramomentthatcircularcavityseemedperfectlyblack.Ihadthesunsetinmyeyes. Ithinkeveryoneexpectedtoseeamanemerge﹣possiblysomethingalittleunlikeusearthlymenbutinallessentialsaman.ButlookingIpresentlysawsomethingexcitingwithintheshadow:clumsymovementsoneaboveanotherandthentwodisc﹣likeeyes.Thensomethingresemblingagreysnakeaboutthethicknessofawalkingstickclimbedupoutofthetwistingmiddleandmovedintheairtowardsme﹣andthenanother. Asuddenchillcameoverme.Istoodfrightenedandstaring.Abiggrayroundedbulkthesizeperhapsofabearwasrisingslowlyandpainfullyoutofthecylinder.Asitbulgedupandcaughtthelightitlookedlikewetleather. AnyonewhohasneverseenalivingMartiancanscarcelyimaginethestrangehorrorofitsappearance.ThepeculiarV﹣shapedmouthwithitspointedupperliptheabsenceofbrowridgestheGorgongroupsoftentacles触手theunstablebreathingofthelungsinastrangeatmospheretheevidentheavinessandpainfulnessofmovementduetothegreatergravitationalenergyoftheearth﹣abovealltheextraordinaryintensityofthehugeeyeswhichwasunforgettable﹣wereatoncevitalintenseinhumanandmonstrous.Therewassomethingfungoidintheoilybrownskinsomethingintheclumsydeliberationofthetediousmovementsunspeakablynasty.EvenatthisfirstencounterthisfirstglimpseIwasovercomewithdisgustanddread. 73.Whywasthecrowdelbowingoneanotheraccordingtoparagraph1? A.Therewerenoofficialstocontrolthem. B.Theywerecuriousandwantedtogetagoodviewofthehole. C.Theywereangryandtryingtopushpeopleintothehole. D.Theyweretryingtogetawayfromtheholeinfear. 74.TheMartianshockedthenarratorbecause. A.itdidnotlookliketheotherMartiansthathadarrivedearlier B.itarrivedonEarthinastrangeandnasty﹣lookingcylinder C.itwasmovingsurprisinglyslowlyforaMartian D.likemostpeoplehehadthoughtitwouldresembleahuman 75.Asuddenchillparagraph5cameoverthenarratorbecause. A.theMartianwasheadingdirectlytowardsthecrowd B.acoldtentaclehadalmostreachedthenarrator C.hesawtheMartian'sterrifyingfeaturesasitclimbedoutofthecylinder D.thesunhadsetandhesuddenlynoticedthenight﹣timechill 76.Whatdidthenarratorfindmostimpressiveaboutthecreature? A.Thehorribleshapeofitsmouthandface. B.Itslongandstrangetentacles. C.ThewayitmovedintheEarth'satmosphere. D.Itsunusuallargeandintenseeyes. 77.ThedescriptionoftheMartiansimpliesthattheyare. A.cuteandcharming B.friendlyandcooperative C.frighteningandprobablydangerous D.uglybutunluckilymisunderstood.
他有着如此坚强的意志定会不遗余力力争提前完成任务.such…that .
不可否认的是上海迪斯尼乐园每天人满为患.deny
30分Let'sfaceit:whilewegototheofficetoworknooneisexpectedtokeeptheirheaddowntheentiretimethey'rethere.Yetcompaniesexpect51outoftheiremployees:that'swhythey'repayingyoutobethere.Notalkingorsocializingatallisone52whiletheotherisbeingabletotalktowhomeveryouwantwheneveryouwantaboutwhateveryouwantevenifyouneverquitemanagetomakeittoyourdeskuntil11:00a.m.Bothexamplesare53unrealistic.Sofirstwehavetheentiregrayareainbetweenthosetwoandthat'sjustduringofficetime. Thephrasepeople﹣orientedisgenerallyusedto54somethingthatvaguelyrepresentsacompanywhereeveryoneispleasantandhappy.It'sfuntoworkthereeveryonelikeshisorherjobandeachemployeeis55wellandfairly.Knowanycompanieslikethat?People﹣orientedisatraditionalandunclearphrasethatneeds56tomakesureyourdefinitionisthesameasthecompany'sandthatyoucanspota57ifthereisone. Sowhatdoyoumeanbypeople﹣oriented?Doyouwantacompanythatpromotesfromwithinanddoesn't58gatheringatthewatercooler?Acompanywheremanagementmakesapracticeofbeing59?Aplacewherecustomersareofgreat60bothinphilosophyandactualityoronethatisinvolvedinitscommunityandrequireseach61tojoinorparticipateinaspecificeventonceortwiceeachyear?Whenyoulookcloseratwhatthisphrasemeanstoyouyou'lldiscoverthatsomeaspectsaremoreimportanttoyouthanothers.Knowingwhatyoumeanbythisphrasegivesyouthepowertodiscoverifthecompany's62isthesameasyours. Whybotherleavingamessagethatmaynotbe63fordayswhenyoucanreachsomeoneinstantlywithatextorinstantmessage?Thatseemstobeincreasinglydominantviewpointanyway.Whentextingandinstantmessagingfor64needskeepinmindsometipsfromworkplaceandcareerexperts. MarlaHarrabusinessetiquetteconsultantandtrainersaysthatwhenrelyingontextingandmessagingforworkyoushould65thatthepersonyouwanttosendatextmessagewantstoreceiveandcommunicateinthatway. 51.A.efficiency B.enthusiasm C.qualification D.contribution 52.A.phenomenon B.issue C.extreme D.disadvantage 53.A.illegally B.subjectively C.regularly D.equally 54.A.exchange B.convey C.provide D.promote 55.A.trained B.honored C.complimented D.treated 56.A.defining B.restricting C.analyzing D.summarizing 57.A.feature B.difference C.distance D.principle 58.A.concernabout B.lookinto C.disapproveof D.chargewith 59.A.attractive B.accessible C.aggressive D.accurate 60.A.importance B.benefit C.emphasis D.conscience 61.A.employer B.employee C.customer D.participant 62.A.regulation B.explanation C.definition D.opinion 63.A.launched B.released C.revised D.checked 64.A.business B.privacy C.public D.secret 65.A.recall B.ensure C.inform D.remind
10分A13﹣yearstudyofearlychildhooddevelopment1makebyHarvardUniversityhasshownthatbytheageofthreemostchildrenhavethebigpotential2understandabout1000words﹣mostofthelanguagetheywilluseinordinaryconversationfortherestoftheirlives. Furthermoreresearchhasshownthatwhileeverychildisbornwithanaturalcuriosity.Italldecline3greatduringthesecondandthirdyearsoflife.Researcherssaythatthehumanpersonality4formduringthefirsttwoyearsoflifeandduringthefirstthreeyearschildrenlearnthebasicskillstheywilluseinalltheirlaterlearningbothathome5atschoo1. 6isgenerallyacknowledgedthatyoungpeoplefrompoorersocio﹣economicbackgroundstendtodolesswellinoureducationsystem.AsaresuItoftheresearchevidenceofthe7importantofthefirstthreeyearsofachild'soflifeapilotprogramme8focusedonparentsasthechild'sfirstteachersstartedintheUS.Astheprogrammeshowsworkingwiththefamilyratherthanbypassingtheparents9bethemosteffectivewayof10helpchildrengetofftothebestpossiblestartinlife.
1分Ifyoueatandtakemoreexerciseyouwillsoonloseweight. A.little B.less C.least D.more
Awomanstandingoversixfeettallandweighingabout200poundsisboundtomakeanimpression.ButinMaryFields'casethesefeatureswereoutmatchedbyaheartofgoldthatmadeherlegendary传奇的. BornintoslaveryinTennesseein1832or1833Maryhadnothingnotevenadateofbirth.Howeverinherearlyyearsshefoundsomethingoftrulylastingvalue﹣afriendnamedDolly.InadditiontofriendshipDollyalsomayhavetaughtMarytoreadandwriteaninvaluableadvantageforslaves.AttheendofAmerica'sCivilWarMaryfinallyreceivedherfreedomandmadeherownwayoutintotheworld. MarywasemployedonasteamboatasamaidwhenshereceivedwordfromDollynowanun修女inOhiocalledMotherAmadeus.MaryarrivedinOhioin1878andworkedatAmadeus'girls'schoolmanagingthekitchenandgarden.Shebecameknownasagun﹣carryingcigar﹣smokingwomanbutalsoasanexampleofkindnessandreliability.AfterafewyearsthoughAmadeuswassenttoanotherschooloutWestinMontanabecomingthefirstblackwomantosettleincentralMontana. WhenMarywasinher50sasickMotherAmadeuscalledherWest.SoMarymadeherwaytothesmalltownofCascadeMontanatonurseAmadeustohealth.ShedidthisandmorerunningsuppliesandvisitorstoSt.Peter'sMissionwhereAmadeuslived.Oncewhenherwagon四轮马车overturnedsheguardedthedeliveryfromwolvesthroughthenight. ButMary'sroughedgescausedthelocalbishop主教toprohibitherfromworkingatthemission.MotherAmadeusthensetherupasthefirstAfrican﹣AmericanfemaleemployeeoftheU.S.PostalService.Thoughinher60sMarywassuchadependablemailcarrierthatsheearnedthenametagecoachMary.ShebecameabelovedfigureinCascade.Shewastheonlywomanallowedinthesaloon酒馆wasthebaseballteam'sbiggestfanandwasgivenfreemealsinthetownhotel. Nearly70MaryquitdeliveringthemailbutremainedinCascade.Thetown'sschoolclosedtocelebrateherunknownbirthdaytwiceayear.Whenshepassedawayin1914asimplecrosswasplacedtomarkhergraveandherlegendintheWildWest. 1WhataboutMaryFieldsimpressedpeoplemost? A.Hertallandfatfigure. B.Herreputationasaneducatedslave. C.Herfriendlinessandresponsibility. D.Herhabitofcarryingagunandsmoking. 2WhichofthefollowingshowsMary'slifeexperienceintheorderoftime? ①MarybegantodelivermailinCascade. ②MaryworkedinaschoolinMontana. ③Marywastaughttoreadandwrite. ④MarytookcareofsickAmadeus. ⑤Maryworkedonasteamedboat. A.⑤①③②④ B.⑤④②①③ C.②④⑤③① D.③⑤②④① 3Marybecameamailcarrierbecause A.peopleinCascadelovedher B.sheonceworkedatSt.Peter'sMission C.MotherAmadeusrecommendedher D.theUSPostalServiceneededafemaleemployee 4Inthelastparagrapht4herlegendmostprobablyrefersto. A.herhighsocialstatus B.herunusuallifeasapioneer C.herfriendshipwithAmadeus. D.herroleintheliberationofslaves
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