[单选]  阅读下列短文，从A、B、C三个选项中选出一个正确答案。      ElizabethBlackwellwasborninEnglandin1821,andmovedtoNewYorkCitywhenshewastenyearsold.Onedayshedecidedthatshewantedtobecomeadoctor.Thatwasnearlyimpossibleforawomaninthemiddleofthenineteenthcentury.Afterwritingmanylettersaskingforadmission（录取）tomedicalschools,shewasfinallyacceptedbyadoctorinPhiladelphia.Shewassodeterminedthatshetaughtschoolandgavemusiclessonstogetmoneyforthecostofschooling.        In1849,aftergraduationfrommedicalschool,shedecidedtofurtherhereducationinParis.Shewantedtobeasurgeon（外科医师）,butaseriouseyeproblemforcedhertogiveuptheidea.      UponreturningtotheUnitedStates,shefounditdifficulttostartherownpracticebecauseshewasawoman.By1857Elizabethandhersister,alsoadoctor,alongwithanotherwomandoctor,managedtoopenanewhospital,thefirstforwomenandchildren.Besidesbeingthefirstwomanphysicianandfoundingherownhospital,shealsosetupthefirstmedicalschoolforwomen. 1.Whycouldn'tElizabethBlackwellrealizeherdreamofbecomingasurgeon?A.Shecouldn’tgetadmittedtomedicalschool.B.ShedecidedtofurtherhereducationinParis.C.Aseriouseyeproblemstoppedher.2.Whatmainobstacle（障碍）almostdestroyedElizabeth’schancesforbecomingforadoctor? A.Shewasawoman.B.Shewrotetoomanyletters.C.Shecouldn’tgraduatefrommedicalschool.3.Howmanyyearspassedbetweenhergraduationfrommedicalschoolandtheopeningofherhospital? A.Eightyears. B.Tenyears.     C.Nineteenyears.                     4.Accordingtothepassage,allofthefollowingare“firsts“inthelifeofElizabethBlackwell,exceptthatshe.A.becamethefirstwomanphysicianB.andseveralotherwomenfoundedthefirsthospitalforwomenandchildrenC.setupthefirstmedicalschoolforwomen5.ElizabethBlackwellspentmostofherlifein.A.England B.Paris     C.theUnitedStates