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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
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235x7469的众数是4则这组数据的中位数是
4
5
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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Notsofarinthedistantpastastudyonwaterpollutionfoundthatcommoneverydaymakeupproductsbeingwasheddownthedrainwasendingupinwellanddrinkingwater.Nowastudyhasfoundthatpeoplepollutethemselves.Manyofthepollutantsarelinkedtocancerandotherserioushealth41.What'sthekeycauseofthispollution?Commonhouseholditems42appeartobeusedmorebywomenthanmen.Theseincludemakeuphairsprayandcommercialchemically﹣madeperfumes.Theseareperfumesthatare43advertisedashavingsomesortofbeneficialeffectonthebodyandareevensuggestedasareplacementfornaturalessentialoils.Studiesontheeffectivenessoffragranceoilsandhealthbenefitshavebeen44somethingneglectedtobementioned.Ifthechemicalscenthascancer﹣causingpropertiesitmaynotmakesensetotryanduseitforhelpingyousleepor45yourbloodpressure.Manufacturersarguethattheriskisnon﹣existentasthelevelsofchemicalsfoundinthetestsweresosmall.Howeverwithover60chemicalsbeingfoundmanyofwhichwerenon﹣existentbeforetheturnofthecenturyresearchersmakenotethatthesechemicalsmaybeenoughtocauseproblems. Sincetheproductsmentionedareoftenusedbywomenitleavesonetowonderifconditions46unheardofbeforetheturnofthecenturyarelinkedtoman﹣madechemicals?Perfumesinparticularwhenchemicalhavebeenlinkedtoasthma哮喘andothersensitive47.Somegroupsareaskingthegovernmenttoordermanufacturerstoplace48labelsoneachbottle. Essentialoilsandrealfragranceoilsprovideawonderful49tocommercialfragrances.Theyalsohaveotherpropertiesandeffectsonthebodywhichhavebeenscientificallyproven.Inadditionyoucanactuallyformulateyourownscentquiteeasily!Therearemanybooksonperfume50andtheuseofessentialoilssomequitein﹣depthandothersratherfun.Nowadaystherearealsomanycompaniesmakingperfumesfrompureessentialoils.
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元旦节前夕某花店购进康乃馨和玫瑰两种鲜花销售过程中发现康乃馨比玫瑰销量大店主决定将玫瑰每枝降价2元促销降价后80元可购买玫瑰的数量是原来可购买玫瑰数量的1.25倍． 1试问降价后每枝玫瑰的售价是多少元 2根据销售情况店主用不多于1000元的资金再次购进两种鲜花共180枝康乃馨进价为6元/枝玫瑰的进价是5元/枝．试问至少需要购进多少枝玫瑰
已知一组数据为53363则这组数据的方差是．
Garlic Garlicacommonseasoningfoundinmanydifferenttypesoffoodhasalongmedicalandmythicalhistory.Referencestogarlic25findinChinesetextsthataredatedasfarbackas3000BC.ThephysicianHippocratesusedgarlicinancientGreece26treatinfectionsandphysicaldisorders.Inmanypartsofancientworldgarlicwasthoughttoavoidunfriendlyspiritstreatwounds27protectagainstdisease. Romansoldiersbelievedthatgarlicbroughtthemcourageandenergy.Theytookitwiththemwhentheywentintobattle.Egyptiansfedgarlictotheirservantswhentheybuiltpyramids.Theythoughtthatitgavetheworkersstrength.TheyalsobelievedthatgarlichadmagicalandmedicinalpowersintheMiddleAgespeoplethoughtthatgarlicpreventedtheplague瘟疫. Peoplehavepraisedthevirtuesofgarlicforcenturies.Garlic'spopularitybegantodeclineintheearlyyearsofthetwentiethcenturybutitsreputation28restoreinrecentyears.ItisnowavaluablecashcropinthestateofCalifornia.Nearlyahalf﹣billionpoundsofgarlicareproducedthereeachyear.ThecityofGilroyCaliforniaconsiders29thegarliccapitaloftheworld.EachyearthecityhoststheGilroyGarlicFestivalinhonorofthecrop. Somedoctorsarestudyinggarlic'seffectsasadefense30someformsofcancer.Othersareexploringitspossibilitiesfortreatingarthritis.Garlichasalsoreceivedpraiseforitsabilitytolowerhighlevelsofcholesterol胆固醇. 31someofthemedicinalbenefitsofgarlichaveyettobeprovenitiscertain32manypeopleenjoytheflavourthatitaddstofood.
如图⊙O是△ABC的外接圆AB为直径∠BAC的平分线交⊙O于点D过点D作DE⊥AC分别交ACAB的延长线于点EF． 1求证EF是⊙O的切线 2若AC＝4CE＝2求的长度．结果保留π
有理数﹣的相反数为
如图1在Rt△ABC中∠A＝90°AB＝AC点DE分别在边ABAC上AD＝AE连接DC点MPN分别为DEDCBC的中点． 1观察猜想 图1中线段PM与PN的数量关系是位置关系是 2探究证明 把△ADE绕点A逆时针方向旋转到图2的位置连接MNBDCE判断△PMN的形状并说明理由 3拓展延伸 把△ADE绕点A在平面内自由旋转若AD＝4AB＝10请直接写出△PMN面积的最大值．
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Directions:Readthefollowingpassage.Summarizethemainideaandthemainpointsofthepassageinnomorethan60words.Useyourownwordsasfaraspossible. GeneTherapy WeusedtothinkthatourfatewasinourstarsbutnowweknowthatinlargemeasureourfateisinourgenessaidJamesWatson.Watsonisamolecular分子的biologistandco﹣discovererofDNAstructure.Why?Scientistsareseeingthatgenetherapyisrevolutionizingthetreatmentofdisease. Ingenetherapyhealthygenesareintroducedintodefective有缺陷的cellstopreventorcuredisease.Whilemuchoftheresearchisinthebeginningstagessomesuccessespointtotherealbenefitofthetherapy.InItalydoctorshaverecentlytreatedonegeneticdiseasewithgenetherapy.Thisdiseasemostoftenbeginstodestroythebrainwhenchildrenarebetween1and2stoppingthemfromwalkingandtalking.Byinsertingnormalhealthygeneticmaterialintoavimsandtheninfectingthepatientsscientistsseemtobeabletocurethedisease.Althoughthechildrengiventhetherapystillneedfollow﹣uptreatmentstheynowleadarelativelynormallife. Genetherapyhasalsobeenusedtohelpolderpatients.Thesepeoplesufferfromadiseasethatcausesslowmovementanduncontrollableshakingbecausepartofthebraindies.Thosetreatedwithgenetherapyshoweda23.1percentimprovementwhentestedsixmonthslater. Genetherapyappearstobeamorepositivealternativetosurgeryormedicineandisanexcitingnewapproachthatisjustmakingthenews.Researchershopethatinthecomingyearseverygeneticdiseasewillhavegenetherapyasitstreatment.Butmoreresearchisneededtoassureitssafety.
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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.
已知菱形的一边与等腰直角三角形的直角边等长若菱形的一个角是30°则菱形和等腰直角三角形的面积之比为
下列一元二次方程中有两个不相等的实数根的方程是
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.
如图⊙O的直径AB垂直于弦CD垂足为E．如果∠B＝60°AC＝4那么CD的长为．
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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
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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 .
若2+的小数部分为a5﹣的小数部分为b则a+b的值为．
不可否认的是上海迪斯尼乐园每天人满为患.deny
计算﹣2018×2019的结果为
先化简再求值其中x＝﹣1．
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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