【Scientistshaverecentlydiscoveredthatmotherstendtoholdtheirbabyontheleft．Of255right-handedmothers，83％heldthebabyontheleft．Andoutof32left-handedwomen，78％heldthebabyontheleftAsacontrol(参照实验)，wo】

　　Scientistshaverecentlydiscoveredthatmotherstendtoholdtheirbabyontheleft．Of255right-handedmothers，83％heldthebabyontheleft．Andoutof32left-handedwomen，78％heldthebabyontheleftAsacontrol(参照实验)，womenwerewatchedcomingfromsupermarketscarryingbaby-sizedbags；thebagswereheldwithnosidepreference．

　　Then，dental(牙科的)patientsweregivenalargerubberballtoholdduringtreatment．Themajorityheldtheballtotheirleftside，evenwhenitwasinterruptedwiththedentist’sactivities．

　　Thissuggestedthatintimesofstressobjectsareheldagainsttheleftside．

　　Atthatpoint，somethingclearlycontrarywasobserved．Alargenumberofmotherswhobroughttheirpremature(早产的)babiestoaclinicwereseentoholdtheirbabiesagainsttheirrightside．

　　So，115motherswhohadbeenseparatedfromtheirbabiesfor24hoursafterbirthwereobservedforholdingresponse．Theexperimenterspresentedthebabydirectlytomidlineofthemother’sbodyandnotedhowsheheldthebaby．53％placedthebabyontheleftand47％ontheright．Anditwasalsonotedthatthemothersofthegroupwhohadheldtheirbabyonthelefthadalreadyhadababyfromwhichtheyhadnotbeenseparatedafterbirth．

　　Left-handedholdingenablesthebabytoheartheheartbeat．Inordertodiscoverwhetherhearingthehearthasabeneficialeffectonthebaby，thesoundofahumanheart-beatwasplayedto102babiesinaNewYorknurseryfor4days．Acontrolgroupofbabieswasnotexposedtoheart-beats．Thebabiesintheheart-beatgroupgainedmoreweightandcriedfarlessthanthebabiesinthecontrolgroup．

　　60．Scientistsfoundthat．

　　A．left-handedwomentendtoholdtheirbabiesontheright

　　B．moreright-handedwomenthanleft-handedwomentendtoholdtheirbabiesontheleft

　　C．onlyright-handedwomentendtoholdtheirbabiesonthecorrectside

　　D．womenwhoholdtheirbabiesontheleftarenearlyallright-handed

　　61．Whatdoestheunderlinedpart“someclearlycontrary”inthesecondparagraphmean?

　　A．Mothersofprematurebabiesheldtheirbabiesonthecorrectside

　　B．Mothersofprematurebabiestooktheirbabiestoaclinic．

　　C．Mothersofprematurebabieswereseentoholdtheirba