陕西专升本考试考试真题卷6Word格式文档下载.docx
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陕西专升本考试考试真题卷6Word格式文档下载.docx
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一、单项选择题(共50题,每题2分。
每题的备选项中,只有一个最符合题意)
1.Imagineyouarealeft-hander.Suddenlyeverythingintheworldischanged.Thedoorlocksareonthewrongsideofdoors.Theshiftgear(变速器)inyourcarisinthewrongplace.Handlesontinopenersareonthewrongsideandturnthewrongway.Twenty-fivemillionAmericanswakeupeverydayinjustsuchasorrysituation.Theyareoneintenofuswhoareleft-handedandmustfacetheworlddesignedfortheright-handedmajority.Whyweareleftorright-handedremainsoneofthegreatestunsolvedmysteriesofscience.Weknowthatnearlytwooutofthreeleftiesaremenandthatleft-handednessrunsinfamilies.Accordingtoonestudyalmosthalfofthechildrenoftwoleft-handedparentswillbeleft-handed.TheScots-IrishfamilyKerrproducedsomanyleft-handersthatin1470thefamilybuiltitshousestairwaywithareversetwist.Ontheotherhand,heredity(遗传)alonecannotexplainlefties.Atleast84percentofthemarebornoftworight-handedparents.Andin12percentoftwins,onewillberight-handed,theotherleft.Perhapsthegreatestpuzzleofallisnotwhysomepeopleareleft-handed,butratherwhysofeware.Infact,almostequalnumbersofindividualswillfavoureithertherightortheleft.However,scientistsaretryingtosetthingsrightandtheyarebeginningtostudythemanywaysleft-handersdifferfromright-handersbyconsideringhowtheirbrainswork.WhichofthefollowingisNOTtrue()
A.Ifbothparentsareleft-handed,about50%oftheirchildrenwillbeso.
B.Thegreaterpartofleft-handershaveright-handedparents.
C.OneintenofAmericansareleft-handed.
D.Mostofuswillfavortheright.
2.Imagineyouarealeft-hander.Suddenlyeverythingintheworldischanged.Thedoorlocksareonthewrongsideofdoors.Theshiftgear(变速器)inyourcarisinthewrongplace.Handlesontinopenersareonthewrongsideandturnthewrongway.Twenty-fivemillionAmericanswakeupeverydayinjustsuchasorrysituation.Theyareoneintenofuswhoareleft-handedandmustfacetheworlddesignedfortheright-handedmajority.Whyweareleftorright-handedremainsoneofthegreatestunsolvedmysteriesofscience.Weknowthatnearlytwooutofthreeleftiesaremenandthatleft-handednessrunsinfamilies.Accordingtoonestudyalmosthalfofthechildrenoftwoleft-handedparentswillbeleft-handed.TheScots-IrishfamilyKerrproducedsomanyleft-handersthatin1470thefamilybuiltitshousestairwaywithareversetwist.Ontheotherhand,heredity(遗传)alonecannotexplainlefties.Atleast84percentofthemarebornoftworight-handedparents.Andin12percentoftwins,onewillberight-handed,theotherleft.Perhapsthegreatestpuzzleofallisnotwhysomepeopleareleft-handed,butratherwhysofeware.Infact,almostequalnumbersofindividualswillfavoureithertherightortheleft.However,scientistsaretryingtosetthingsrightandtheyarebeginningtostudythemanywaysleft-handersdifferfromright-handersbyconsideringhowtheirbrainswork.Amongthelefthanders,()
A.fewaremen
B.mostofthemarewomen
C.halfofthemaremen
D.twothirdsaremen
3.Imagineyouarealeft-hander.Suddenlyeverythingintheworldischanged.Thedoorlocksareonthewrongsideofdoors.Theshiftgear(变速器)inyourcarisinthewrongplace.Handlesontinopenersareonthewrongsideandturnthewrongway.Twenty-fivemillionAmericanswakeupeverydayinjustsuchasorrysituation.Theyareoneintenofuswhoareleft-handedandmustfacetheworlddesignedfortheright-handedmajority.Whyweareleftorright-handedremainsoneofthegreatestunsolvedmysteriesofscience.Weknowthatnearlytwooutofthreeleftiesaremenandthatleft-handednessrunsinfamilies.Accordingtoonestudyalmosthalfofthechildrenoftwoleft-handedparentswillbeleft-handed.TheScots-IrishfamilyKerrproducedsomanyleft-handersthatin1470thefamilybuiltitshousestairwaywithareversetwist.Ontheotherhand,heredity(遗传)alonecannotexplainlefties.Atleast84percentofthemarebornoftworight-handedparents.Andin12percentoftwins,onewillberight-handed,theotherleft.Perhapsthegreatestpuzzleofallisnotwhysomepeopleareleft-handed,butratherwhysofeware.Infact,almostequalnumbersofindividualswillfavoureithertherightortheleft.However,scientistsaretryingtosetthingsrightandtheyarebeginningtostudythemanywaysleft-handersdifferfromright-handersbyconsideringhowtheirbrainswork.Whysofewpeopleareleft-handed()
A.hasnothingtodowithheredity
B.isnotknownbyscientists
C.haslittletodowiththeworkingoftheirbrains
D.isthatleft-handersaremainlytwins
4.Imagineyouarealeft-hander.Suddenlyeverythingintheworldischanged.Thedoorlocksareonthewrongsideofdoors.Theshiftgear(变速器)inyourcarisinthewrongplace.Handlesontinopenersareonthewrongsideandturnthewrongway.Twenty-fivemillionAmericanswakeupeverydayinjustsuchasorrysituation.Theyareoneintenofuswhoareleft-handedandmustfacetheworlddesignedfortheright-handedmajority.Whyweareleftorright-handedremainsoneofthegreatestunsolvedmysteriesofscience.Weknowthatnearlytwooutofthreeleftiesaremenandthatleft-handednessrunsinfamilies.Accordingtoonestudyalmosthalfofthechildrenoftwoleft-handedparentswillbeleft-handed.TheScots-IrishfamilyKerrproducedsomanyleft-handersthatin1470thefamilybuiltitshousestairwaywithareversetwist.Ontheotherhand,heredity(遗传)alonecannotexplainlefties.Atleast84percentofthemarebornoftworight-handedparents.Andin12percentoftwins,onewillberight-handed,theotherleft.Perhapsthegreatestpuzzleofallisnotwhysomepeopleareleft-handed,butratherwhysofeware.Infact,almostequalnumbersofindividualswillfavoureithertherightortheleft.However,scientistsaretryingtosetthingsrightandtheyarebeginningtostudythemanywaysleft-handersdifferfromright-handersbyconsideringhowtheirbrainswork.HowmanyoftheAmericansareleft-handers()
A.10%.
B.12%.
C.50%.
D.84%.
5.Asheartdiseasecontinuestobethenumber-onekillerintheUnitedStates,researchershavebecomeincreasinglyinterestedinidentifyingthepotentialriskfactorsthattriggerheartattacks.High-fatdietsandlifeinthefasttrackhavelongbeenknowntocontributetothehighincidenceofheartfailure.Butaccordingtonewstudies,thelistofriskfactorsmaybesignificantlylongerandquitesurprising.Heartfailure,forexample,appearstohaveseasonalandtemporalpatterns.Ahigherpercentageofheartattacksoccurincoldweather,andmorepeopleexperienceheartfailureonMondaythanonanyotherdayoftheweek.Inaddition,peoplearemoresusceptibletoheartattacksinthefirstfewhoursafterwaking.Cardiologistsfirstobservedthismorningphenomenoninthemid-1980,andhavesincediscoveredanumberofpossiblecauses.Anearly-morningriseinbloodpressure,heartrate,andconcentrationofheartstimulatinghormones,plusareductionofbloodflowtotheheart,mayallcontributetothehigherincidenceofheartattacksbetweenthehoursof8:
00AMand10:
00AM.Inotherstudies,bothbirthdaysandbachelorhoodhavebeenimplicatedasriskfactors.Statisticsrevealthatheartattackratesincreasesignificantlyforbothfemalesandmalesinthefewdaysimmediatelyprecedingandfollowingtheirbirthdays.Andunmarriedmenaremoreatriskforheartattacksthantheirmarriedcounterparts.Thoughstressisthoughttobelinkedinsomewaytoalloftheaforementionedriskfactors,intenseresearchcontinuesinthehopeoffurthercomprehendingwhyandhowheartfailureistriggered.WhichofthefollowingisNOTcitedasapossibleriskfactor()
A.Highincholesterol.
B.Conjugalaffection.
C.Eatingfattyfoods.
D.Beingunderstress.
6.Asheartdiseasecontinuestobethenumber-onekillerintheUnitedStates,researchershavebecomeincreasinglyinterestedinidentifyingthepotentialriskfactorsthattriggerheartattacks.High-fatdietsandlifeinthefasttrackhavelongbeenknowntocontributetothehighincidenceofheartfailure.Butaccordingtonewstudies,thelistofriskfactorsmaybesignificantlylongerandquitesurprising.Heartfailure,forexample,appearstohaveseasonalandtemporalpatterns.Ahigherpercentageofheartattacksoccurincoldweather,andmorepeopleexperienceheartfailureonMondaythanonanyotherdayoftheweek.Inaddition,peoplearemoresusceptibletoheartattacksinthefirstfewhoursafterwaking.Cardiologistsfirstobservedthismorningphenomenoninthemid-1980,andhavesincediscoveredanumberofpossiblecauses.Anearly-morningriseinbloodpressure,heartrate,andconcentrationofheartstimulatinghormones,plusareductionofbloodflowtotheheart,mayallcontributetothehigherincidenceofheartattacksbetweenthehoursof8:
00AM.Inotherstudies,bothbirthdaysandbachelorhoodhavebeenimplicatedasriskfactors.Statisticsrevealthatheartattackratesincreasesignificantlyforbothfemalesandmalesinthefewdaysimmediatelyprecedingandfollowingtheirbirthdays.Andunmarriedmenaremoreatriskforheartattacksthantheirmarriedcounterparts.Thoughstressisthoughttobelinkedinsomewaytoalloftheaforementionedriskfactors,intenseresearchcontinuesinthehopeoffurthercomprehendingwhyandhowheartfailureistriggered.Whichofthefollowingdoesthepassageinfer()
A.Wenowfullyunderstandhowriskfactorstriggerhe
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