Whydosomepeoplelivetobeolderthanothers?Youknowthestandardexplanations:keepingamoderatediet,engaginginregularexercise,etc.Butwhateffectdoesyourpersonalityhaveonyourlongevity(长寿)?Dosomekindsofpersonalitiesleadtolongerlives?AnewstudyintheJournaloftheAmericanGeriatricsSocietylookedatthisquestionbyexaminingthepersonalitycharacteristicsof246childrenofpeoplewhohadlivedtobeatleast100.Thestudyshowsthatthoselivingthelongestaremoreoutgoing,moreactiveandlessneurotic(神经质的)thanotherpeople.Long-livingwomenarealsomorelikelytobesympatheticandcooperativethanwomenwithanormallifespan.Thesefindingsareinagreementwithwhatyouwouldexpectfromtheevolutionarytheory:thosewholiketomakefriendsandhelpotherscangatherenoughresourcestomakeitthroughtoughtimes.Interestingly,however,othercharacteristicsthatyoumightconsideradvantageoushadnoimpactonwhetherstudyparticipantswerelikelytolivelonger.Thosewhoweremoreself-disciplined,forinstance,werenomorelikelytolivetobeveryold.Also,beingopentonewideashadnorelationshiptolonglife,whichmightexplainallthosebad-temperedoldpeoplewhoarefixedintheirways.Whetheryoucansuccessfullychangeyourpersonalityasanadultisthesubjectofalongstandingpsychologicaldebate.Butthenewpapersuggeststhatifyouwantlonglife,youshouldstrivetobeasoutgoingaspossible.Unfortunately,anotherrecentstudyshowsthatyourmother’spersonalitymayalsohelpdetermineyourlongevity.Thatstudylookedatnearly28,000Norwegianmothersandfoundthatthosemomswhoweremoreanxious,depressedandangryweremorelikelytofeedtheirkidsunhealthydiets.Patternsofchildhoodeatingcanbehardtobreakwhenwe’readults,whichmaymeanthatkidsofdepressedmomsendupdyingyounger.Personalityisn’tdestiny(命运),andeveryoneknowsthatindividualscanlearntochange.Butbothstudiesshowthatlonglifeisn’tjustamatterofyourphysicalhealthbutofyourmentalhealth.1.TheaimofthestudyintheJournaloftheAmericanGeriatricsSocietyis________.A.toseewhetherpeople’spersonalityaffectstheirlifespanB.tofindoutifone’slifestylehasanyeffectontheirhealthC.toinvestigatetheroleofexerciseinlivingalonglifeD.toexamineallthefactorscontributingtolongevity2.Whatdoestheauthorimplyaboutoutgoingandsympatheticpeople?A.Theyhaveagoodunderstandingofevolution.B.Theyarebetteratnegotiatinganagreement.C.Theygenerallyappearmoreresourceful.D.Theyaremorelikelytogetoverhardship.3.Whatfindingofthestudymightprovesomewhatoutofourexpectation?A.Easy-goingpeoplecanalsolivearelativelylonglife.B.Personalitycharacteristicsthatproveadvantageousactuallyvarywithtimes.C.Suchpersonalitycharacteristicsasself-disciplinehavenoeffectonlongevity.D.Readinesstoacceptnewideashelpsoneenjoylongevity.4.WhatdoestherecentstudyofNorwegianmothersshow?A.Children’spersonalitycharacteristicsareinvariablydeterminedbytheirmothers.B.Peoplewithunhealthyeatinghabitsarelikelytodiesooner.C.Mothers’influenceonchildrenmaylastlongerthanfathers’.D.Mothers’negativepersonalitycharacteristicsmayaffecttheirchildren’slifespans.5.Whatcanwelearnfromthefindingsofthetwonewstudies?A.Anxietyanddepressionmoreoftenthannotcutshortone’slifespan.B.Longevityresultsfromacombinationofmentalandphysicalhealth.C.Personalityplaysadecisiveroleinhowhealthyoneis.D.Healthisinlargepartrelatedtoone’slifestyle.
Whydosomepeoplelivetobeolderthanothers?Youknowthestandardexplanations:keepingamoderatediet,engaginginregularexercise,etc.Butwhateffectdoesyourpersonalityhaveonyourlongevity(长寿)?Dosomekindsofpersonalitiesleadtolongerlives?AnewstudyintheJournaloftheAmericanGeriatricsSocietylookedatthisquestionbyexaminingthepersonalitycharacteristicsof246childrenofpeoplewhohadlivedtobeatleast100.Thestudyshowsthatthoselivingthelongestaremoreoutgoing,moreactiveandlessneurotic(神经质的)thanotherpeople.Long-livingwomenarealsomorelikelytobesympatheticandcooperativethanwomenwithanormallifespan.Thesefindingsareinagreementwithwhatyouwouldexpectfromtheevolutionarytheory:thosewholiketomakefriendsandhelpotherscangatherenoughresourcestomakeitthroughtoughtimes.Interestingly,however,othercharacteristicsthatyoumightconsideradvantageoushadnoimpactonwhetherstudyparticipantswerelikelytolivelonger.Thosewhoweremoreself-disciplined,forinstance,werenomorelikelytolivetobeveryold.Also,beingopentonewideashadnorelationshiptolonglife,whichmightexplainallthosebad-temperedoldpeoplewhoarefixedintheirways.Whetheryoucansuccessfullychangeyourpersonalityasanadultisthesubjectofalongstandingpsychologicaldebate.Butthenewpapersuggeststhatifyouwantlonglife,youshouldstrivetobeasoutgoingaspossible.Unfortunately,anotherrecentstudyshowsthatyourmother’spersonalitymayalsohelpdetermineyourlongevity.Thatstudylookedatnearly28,000Norwegianmothersandfoundthatthosemomswhoweremoreanxious,depressedandangryweremorelikelytofeedtheirkidsunhealthydiets.Patternsofchildhoodeatingcanbehardtobreakwhenwe’readults,whichmaymeanthatkidsofdepressedmomsendupdyingyounger.Personalityisn’tdestiny(命运),andeveryoneknowsthatindividualscanlearntochange.Butbothstudiesshowthatlonglifeisn’tjustamatterofyourphysicalhealthbutofyourmentalhealth.1.TheaimofthestudyintheJournaloftheAmericanGeriatricsSocietyis________.A.toseewhetherpeople’spersonalityaffectstheirlifespanB.tofindoutifone’slifestylehasanyeffectontheirhealthC.toinvestigatetheroleofexerciseinlivingalonglifeD.toexamineallthefactorscontributingtolongevity2.Whatdoestheauthorimplyaboutoutgoingandsympatheticpeople?A.Theyhaveagoodunderstandingofevolution.B.Theyarebetteratnegotiatinganagreement.C.Theygenerallyappearmoreresourceful.D.Theyaremorelikelytogetoverhardship.3.Whatfindingofthestudymightprovesomewhatoutofourexpectation?A.Easy-goingpeoplecanalsolivearelativelylonglife.B.Personalitycharacteristicsthatproveadvantageousactuallyvarywithtimes.C.Suchpersonalitycharacteristicsasself-disciplinehavenoeffectonlongevity.D.Readinesstoacceptnewideashelpsoneenjoylongevity.4.WhatdoestherecentstudyofNorwegianmothersshow?A.Children’spersonalitycharacteristicsareinvariablydeterminedbytheirmothers.B.Peoplewithunhealthyeatinghabitsarelikelytodiesooner.C.Mothers’influenceonchildrenmaylastlongerthanfathers’.D.Mothers’negativepersonalitycharacteristicsmayaffecttheirchildren’slifespans.5.Whatcanwelearnfromthefindingsofthetwonewstudies?A.Anxietyanddepressionmoreoftenthannotcutshortone’slifespan.B.Longevityresultsfromacombinationofmentalandphysicalhealth.C.Personalityplaysadecisiveroleinhowhealthyoneis.D.Healthisinlargepartrelatedtoone’slifestyle.
【单选题】要指定一个绝对位置 5 , 5 的点,应该输入: () @5 , 5 5 》 5 5 , 5 5<5< span=""> A. @5，5 B. 5》5 C. 5，5 D. 5<5
【单选题】要指定一个绝对位置 5 , 5 的点,应该输入: () @5 , 5 5 》 5 5 , 5 5<5< span=""> A. @5，5 B. 5》5 C. 5，5 D. 5<5
根据乘方的意义可知：53=5×5×5，54=5×5×5×5，则53×54=（5×5×5）×（5×5×5×5）=57即53×54=57。想一想：
根据乘方的意义可知：53=5×5×5，54=5×5×5×5，则53×54=（5×5×5）×（5×5×5×5）=57即53×54=57。想一想：
【单选题】下面程序执行结果() #include main() { int i ,j ; for(i=1; i<=5; i++) { for(j=1; j<=i; j++) printf("%2d",i); printf(" ",); } } A. 1 2 2 3 3 3 4 4 4 4 5 5 5 5 5 B. 1 2 3 4 5 C. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D. 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
【单选题】下面程序执行结果() #include main() { int i ,j ; for(i=1; i<=5; i++) { for(j=1; j<=i; j++) printf("%2d",i); printf(" ",); } } A. 1 2 2 3 3 3 4 4 4 4 5 5 5 5 5 B. 1 2 3 4 5 C. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D. 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
5^2 5^3=5^5
5^2 5^3=5^5
【单选题】5 A. 5 B. 5 C. 5 D. 5
【单选题】5 A. 5 B. 5 C. 5 D. 5
5<>5与5!=5结果相同
5<>5与5!=5结果相同
能正确表示数学关系：“[img=90x21]18031a61b498c1c.png[/img]”的C语言表达式是（ ）。 A: a>=-5 and a<=5 B: a>=-5 or a<=5 C: a>=-5 && a<=5 D: a>=-5 || a<=5
能正确表示数学关系：“[img=90x21]18031a61b498c1c.png[/img]”的C语言表达式是（ ）。 A: a>=-5 and a<=5 B: a>=-5 or a<=5 C: a>=-5 && a<=5 D: a>=-5 || a<=5
运行下列代码段,输出结果为True的是( )。 A: print(5 >= 5) B: print(5 => 5) C: print(5 == 5) D: print(5 <= 5)
运行下列代码段,输出结果为True的是( )。 A: print(5 >= 5) B: print(5 => 5) C: print(5 == 5) D: print(5 <= 5)
1/(1+5%)5=? [(F/P,5%,5)=1.2763,(P/F,5%,5)=0.7835]
1/(1+5%)5=? [(F/P,5%,5)=1.2763,(P/F,5%,5)=0.7835]