Everyonebecomesalittlemoreforgetfulastheygetolder,butmen'smindsdeclinemorethanwomen's,accordingtotheresultsofaworldwidesurvey. Certaindifferencesseemtobeinherentinmaleandfemalebrains:Menarebetteratmaintaininganddealingwithmentalimages(usefulinmathematicalreasoningandspatialskills),whilewomentendtoexcel(擅长)atrecallinginformationfromtheirbrain'sfiles(helpfulwithlanguageskillsandrememberingthelocationsofobjects). Manystudieshavelookedforaconnectionbetweensexandtheamountofmentaldecline(衰退)peopleexperienceastheyage,buttheresultshavebeenmixed. Somestudiesfoundmoreage-relateddeclineinmenthaninwomen,whileotherssawtheoppositeorevennorelationshipatallbetweensexandmentaldecline．Thoseresultscouldbeimproperbecausethestudiesinvolvedolderpeople,andwomenlivelongerthanmen:Thementestedarethesurvivors,"sothey'retheonesthatmaynothaveshownsuchcognitivedecline,"saidstudyteamleaderElizabethoftheUniversityofWarwickinEngland. Peoplesurveyedcompletedfourtasksthattestedsex-relatedcognitiveskills:matchinganobjecttoitsrotatedform,matchinglinesshownfromthesameangle,typingasmanywordsinaparticularcategory(范畴)aspossibleinthegiventime,e.g．"objectusuallycoloredgray",andrecallingthelocationofobjectsinalinedrawing．Thefirsttwoweretasksatwhichmenusuallyexcel;thelatterweretypicallydominatedbywomen. Withineachagegroupstudied,menandwomenperformedbetterintheirseparatecategoriesonaverage．Andthoughperformancedeclinedwithageforbothgenders,womenshowedobviouslylessdeclinethanmenoverall. Theunderlinedwordinthesecondparagraphmeans__________.
A.natural B.great C.obvious D.absolute正确答案A
