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精神抑郁，表情淡漠，神识痴呆，举止失常，舌苔白腻，最宜诊断为( )
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患者女53岁精神抑郁表情淡漠神志痴呆举止失常舌苔白腻最宜诊断为
痰蒙心窍证
风痰上扰证
肝气郁结证
痰火扰神证
热扰心神证
精神抑郁表情淡漠神识痴呆举止失常舌苔白腻者宜诊断为
痰蒙心神证
风痰上扰证
肝气郁结证
痰火扰神证
热扰心神证
精神抑郁表情淡漠神识痴呆举止失常舌苔白腻者最宜诊断为
风痰上扰证
痰火扰神证
痰迷心窍证
肝气郁结证
热扰心神证
精神抑郁表情淡漠痴呆喜静举止失常舌苔白腻者诊为
肝风挟痰
痰火扰神
痰蒙心神
肝气郁结
男18岁因高考失意而精神抑郁表情淡漠神志痴呆举止失常舌淡苔白腻脉弦滑最宜诊断为
痰迷心窍证
风痰上扰证
肝气郁结证
痰火扰神证
热扰心神证
精神抑郁表情淡漠神志痴呆举止失常舌苔白腻最宜诊断为
肝气郁结证
痰迷心窍证
风痰上扰证
痰火扰神证
精神抑郁表情淡漠神识痴呆举止失常舌苔白腻最宜诊断为
痰迷心窍证
风痰上扰证
肝气郁结证
痰火扰神证
热扰心神证
精神抑郁表情淡漠神识痴呆举止失常舌苔白腻者宜诊为
痰蒙心神证
肝气郁结证
痰火扰神证
热扰心神证
精神抑郁表情淡漠神识痴呆举止失常舌苔白腻最宜诊断为
痰火扰心证
痰迷心窍证
心气虚证
肝气郁结证
患者女53岁精神抑郁表情淡漠神识痴呆举止失常舌苔白腻最宜诊断为
风痰上扰证
痰火扰神证
痰蒙心窍证
肝气郁结证
热扰心神证
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Whatoursocietysuffersfrommosttodayistheabsenceofconsensusaboutwhatitandlifeinitoughttobe;suchconsensuscannotbegainedfromsociety’spresentstageorfromfantasiesaboutwhatitoughttobe.Forthatthepresentistoocloseandtoodiversifiedandthefuturetoouncertaintomakebelievableclaimsaboutit.AconsensusinthepresenthencecanbeachievedonlythroughasharedunderstandingofthepastasHomer’sepicsinformedthosewholivedcenturieslaterwhatitmeanttobeGreekandbywhatimagesandidealstheyweretolivetheirlivesandorganizetheirsocieties. Mostsocietiesderiveconsensusfromalonghistoryalanguagealltheirownacommonreligioncommonancestry.Themythsbywhichtheylivearebasedonallofthese.ButtheUnitedStatesisacountryofimmigrantscomingfromagreatvarietyofnations.LatelyithasbeenemphasizedthatanasocialnarcissisticpersonalityhasbecomecharacteristicofAmericansandthatitisthistypeofpersonalitythatmakesforthelackofwell-beingbecauseitpreventsusfromachievingconsensusthatwouldcounteractatendencytowithdrawintoprivateworlds.InthisstudyofnarcissismChristopherLashsaysthatmodernman"torturedbyself-consciousnessturnstonewtherapiesnottofreehimselfofhispersonalworriesbuttofindmeaningandpurposeinlifetofindsomethingtolivefor".Thereiswidespreaddistressbecausenationalmoralehasdeclinedandwehavelostanearliersenseofnationalvisionandpurpose. Contrarytorigidreligionsorpoliticalbeliefsasarefoundintotalitariansocietiesourcultureisoneofthegreatindividualdifferencesatleastinprincipleandintheory;butthisleadstodisunityevenchaos.Americansbelieveinthevalueofdiversitybutjustbecauseoursisasocietybasedonindividualdiversityitneedsconsensusaboutsomedominatingideasmorethansocietiesbasedonuniformoriginoftheircitizens.Henceifwearetohaveconsensusitmustbebasedonamyth--avisionaboutacommonexperienceaconquestthatmadeusAmericansasthemythabouttheconquestofTroyformedtheGreeks.Onlyacommonmythcanofferrelieffromthefearthatlifeiswithoutmeaningorpurpose.Mythspermitustoexamineourplaceintheworldbycomparingittoasharedidea.Mythsaresharedfantasiesthatformthetie.thatbindstheindividualtoothermembersofhisgroup.Suchmythshelptowardofffeelingsofisolationsguiltanxietyandpurposelessness--inshorttheycombatisolationandthebreakdownofsocialstandardsandvalues. Americansmayfindthemselvesinasocietycharacterizedby
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.7
设fx在[ab]上二阶可导且fx＜0x0∈[ab]证明fx≤fx0+f’x0x-x0等号成立当且仅当x=x0并证明fx在ab内是上凸的函数Ⅱ设fx∈C[01]且fx＞0证明．
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.5
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.13
设其中F为可微函数则为
计算二重积分其中区域D是由直线x=-2y=0y=2及曲线所围成的平面区域．
Whatoursocietysuffersfrommosttodayistheabsenceofconsensusaboutwhatitandlifeinitoughttobe;suchconsensuscannotbegainedfromsociety’spresentstageorfromfantasiesaboutwhatitoughttobe.Forthatthepresentistoocloseandtoodiversifiedandthefuturetoouncertaintomakebelievableclaimsaboutit.AconsensusinthepresenthencecanbeachievedonlythroughasharedunderstandingofthepastasHomer’sepicsinformedthosewholivedcenturieslaterwhatitmeanttobeGreekandbywhatimagesandidealstheyweretolivetheirlivesandorganizetheirsocieties. Mostsocietiesderiveconsensusfromalonghistoryalanguagealltheirownacommonreligioncommonancestry.Themythsbywhichtheylivearebasedonallofthese.ButtheUnitedStatesisacountryofimmigrantscomingfromagreatvarietyofnations.LatelyithasbeenemphasizedthatanasocialnarcissisticpersonalityhasbecomecharacteristicofAmericansandthatitisthistypeofpersonalitythatmakesforthelackofwell-beingbecauseitpreventsusfromachievingconsensusthatwouldcounteractatendencytowithdrawintoprivateworlds.InthisstudyofnarcissismChristopherLashsaysthatmodernman"torturedbyself-consciousnessturnstonewtherapiesnottofreehimselfofhispersonalworriesbuttofindmeaningandpurposeinlifetofindsomethingtolivefor".Thereiswidespreaddistressbecausenationalmoralehasdeclinedandwehavelostanearliersenseofnationalvisionandpurpose. Contrarytorigidreligionsorpoliticalbeliefsasarefoundintotalitariansocietiesourcultureisoneofthegreatindividualdifferencesatleastinprincipleandintheory;butthisleadstodisunityevenchaos.Americansbelieveinthevalueofdiversitybutjustbecauseoursisasocietybasedonindividualdiversityitneedsconsensusaboutsomedominatingideasmorethansocietiesbasedonuniformoriginoftheircitizens.Henceifwearetohaveconsensusitmustbebasedonamyth--avisionaboutacommonexperienceaconquestthatmadeusAmericansasthemythabouttheconquestofTroyformedtheGreeks.Onlyacommonmythcanofferrelieffromthefearthatlifeiswithoutmeaningorpurpose.Mythspermitustoexamineourplaceintheworldbycomparingittoasharedidea.Mythsaresharedfantasiesthatformthetie.thatbindstheindividualtoothermembersofhisgroup.Suchmythshelptowardofffeelingsofisolationsguiltanxietyandpurposelessness--inshorttheycombatisolationandthebreakdownofsocialstandardsandvalues. TheauthorconcludesthatonlysharedmythscanhelpAmericans
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.3
由方程所确定的函数z=zxy在点112处的全微分dz=______．
Inthenextcenturywe’llbeabletoalterourDNAradicallyencodingourvisionsandvanitieswhileconcoctingnewlife-forms.WhenDr.Frankensteinmadehismonsterhewrestledwiththemoralissueofwhetherheshouldallowittoreproduce"HadItherightformyownbenefittoinflictthecurseuponeverlastinggenerations"Willsuchquestionsrequireustodevelopnewmoralphilosophies Probablynot.Insteadwe’llreachagainforatime-testedmoralconceptonesometimescalledtheGoldenRuleandwhichKantthemillennium’smostprudentmoralistconjuredupintoacategoricalimperative:Dountoothersasyouwouldhavethemdountoyou;treateachpersonasanindividualratherthanasameanstosomeend. Underthismoralpreceptweshouldrecoilathumancloningbecauseitinevitablyentailsusinghumansasmeanstootherhumans’endsandvaluingthemascopiesofotherswelovedorascollectionsofbodypartsnotasindividualsintheirownright.WeshouldalsodrawalinehoweverfuzzythatwouldpermitusinggeneticengineeringtocurediseasesanddisabilitiesbutnottochangethepersonalattributesthatmakesomeoneanindividualIQphysicalappearancegenderandsexuality. Thebiotechagewillalsogiveusmorereasontoguardourpersonalprivacy.AldousHuxleyinBraveNewWorldgotitwrong:ratherthancentralizingpowerinthehandsofthestateDNAtechnologyhasempoweredindividualsandfamilies.Butthestatewillhaveanimportantrolemakingsurethatnooneincludinginsurancecompaniescanlookatourgeneticdatawithoutourpermissionoruseittodiscriminateagainstus. Thenwecangetreadyforthebreakthroughsthatcouldcomeattheendofthenextcenturyandthetechnologyiscomparabletomappingourgenes:plottingthe10billionormoreneuronsofourbrain.Withthatinformationwemightsomedaybeabletocreateartificialintelligencesthatthinkandexperienceconsciousnessinwaysthatareindistinguishablefromahumanbrain.Eventuallywemightbeabletoreplicateourownmindsina"dry-ware"machinesothatwecouldliveonwithoutthe"wet-ware"ofabiologicalbrainandbody.The20thcentury’srevolutionininfotechnologywilltherebymergewiththe21stcentury’srevolutioninbiotechnology.Butthisissciencefiction.Let’sturnthepagenowandgetbacktorealscience. Itcanbeconcludedfromthetextthatthetechnologyofhumancloningshouldbeemployed
设矩阵矩阵A满足B-1=B*A+A则A=______．
设D为xOy平面上的有界闭区域z=fxy在D上连续在D内可偏导且满足+若fxy在D内没有零点则fxy在D上
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.1
设问abc为何值时矩阵方程AX=B有解有解时求出全部解．
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.19
Whatoursocietysuffersfrommosttodayistheabsenceofconsensusaboutwhatitandlifeinitoughttobe;suchconsensuscannotbegainedfromsociety’spresentstageorfromfantasiesaboutwhatitoughttobe.Forthatthepresentistoocloseandtoodiversifiedandthefuturetoouncertaintomakebelievableclaimsaboutit.AconsensusinthepresenthencecanbeachievedonlythroughasharedunderstandingofthepastasHomer’sepicsinformedthosewholivedcenturieslaterwhatitmeanttobeGreekandbywhatimagesandidealstheyweretolivetheirlivesandorganizetheirsocieties. Mostsocietiesderiveconsensusfromalonghistoryalanguagealltheirownacommonreligioncommonancestry.Themythsbywhichtheylivearebasedonallofthese.ButtheUnitedStatesisacountryofimmigrantscomingfromagreatvarietyofnations.LatelyithasbeenemphasizedthatanasocialnarcissisticpersonalityhasbecomecharacteristicofAmericansandthatitisthistypeofpersonalitythatmakesforthelackofwell-beingbecauseitpreventsusfromachievingconsensusthatwouldcounteractatendencytowithdrawintoprivateworlds.InthisstudyofnarcissismChristopherLashsaysthatmodernman"torturedbyself-consciousnessturnstonewtherapiesnottofreehimselfofhispersonalworriesbuttofindmeaningandpurposeinlifetofindsomethingtolivefor".Thereiswidespreaddistressbecausenationalmoralehasdeclinedandwehavelostanearliersenseofnationalvisionandpurpose. Contrarytorigidreligionsorpoliticalbeliefsasarefoundintotalitariansocietiesourcultureisoneofthegreatindividualdifferencesatleastinprincipleandintheory;butthisleadstodisunityevenchaos.Americansbelieveinthevalueofdiversitybutjustbecauseoursisasocietybasedonindividualdiversityitneedsconsensusaboutsomedominatingideasmorethansocietiesbasedonuniformoriginoftheircitizens.Henceifwearetohaveconsensusitmustbebasedonamyth--avisionaboutacommonexperienceaconquestthatmadeusAmericansasthemythabouttheconquestofTroyformedtheGreeks.Onlyacommonmythcanofferrelieffromthefearthatlifeiswithoutmeaningorpurpose.Mythspermitustoexamineourplaceintheworldbycomparingittoasharedidea.Mythsaresharedfantasiesthatformthetie.thatbindstheindividualtoothermembersofhisgroup.Suchmythshelptowardofffeelingsofisolationsguiltanxietyandpurposelessness--inshorttheycombatisolationandthebreakdownofsocialstandardsandvalues. Thistextismainlyintendedto
设抛物线y=ax2+bx+c过点00及12其中a＜0确定abc使抛物线与x轴所围成的面积最小．
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.17
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.11
设fx=x2ln1+x则f500=______．
Inthenextcenturywe’llbeabletoalterourDNAradicallyencodingourvisionsandvanitieswhileconcoctingnewlife-forms.WhenDr.Frankensteinmadehismonsterhewrestledwiththemoralissueofwhetherheshouldallowittoreproduce"HadItherightformyownbenefittoinflictthecurseuponeverlastinggenerations"Willsuchquestionsrequireustodevelopnewmoralphilosophies Probablynot.Insteadwe’llreachagainforatime-testedmoralconceptonesometimescalledtheGoldenRuleandwhichKantthemillennium’smostprudentmoralistconjuredupintoacategoricalimperative:Dountoothersasyouwouldhavethemdountoyou;treateachpersonasanindividualratherthanasameanstosomeend. Underthismoralpreceptweshouldrecoilathumancloningbecauseitinevitablyentailsusinghumansasmeanstootherhumans’endsandvaluingthemascopiesofotherswelovedorascollectionsofbodypartsnotasindividualsintheirownright.WeshouldalsodrawalinehoweverfuzzythatwouldpermitusinggeneticengineeringtocurediseasesanddisabilitiesbutnottochangethepersonalattributesthatmakesomeoneanindividualIQphysicalappearancegenderandsexuality. Thebiotechagewillalsogiveusmorereasontoguardourpersonalprivacy.AldousHuxleyinBraveNewWorldgotitwrong:ratherthancentralizingpowerinthehandsofthestateDNAtechnologyhasempoweredindividualsandfamilies.Butthestatewillhaveanimportantrolemakingsurethatnooneincludinginsurancecompaniescanlookatourgeneticdatawithoutourpermissionoruseittodiscriminateagainstus. Thenwecangetreadyforthebreakthroughsthatcouldcomeattheendofthenextcenturyandthetechnologyiscomparabletomappingourgenes:plottingthe10billionormoreneuronsofourbrain.Withthatinformationwemightsomedaybeabletocreateartificialintelligencesthatthinkandexperienceconsciousnessinwaysthatareindistinguishablefromahumanbrain.Eventuallywemightbeabletoreplicateourownmindsina"dry-ware"machinesothatwecouldliveonwithoutthe"wet-ware"ofabiologicalbrainandbody.The20thcentury’srevolutionininfotechnologywilltherebymergewiththe21stcentury’srevolutioninbiotechnology.Butthisissciencefiction.Let’sturnthepagenowandgetbacktorealscience. Accordingtothelastparagraphdry-wareistowet-wareas
n元线性方程组Ax=b有唯一解的充要条件是
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.15
Asoneworkswithcolorinapracticalorexperimentalwayoneisimpressedbytwoapparentlyunrelatedfacts.Colorasseenisamobilechangeablething1toalargeextentontherelationshipofthecolor2othercolors3simultaneously.Itisnot4initsrelationtothedirectstimuluswhich5it.Ontheotherhandthepropertiesofsurfacesthatgive6tocolordonotseemtochangegreatlyunderawidevarietyofilluminationcolorusuallybutnotalwayslookingmuchthesameinartificiallightasindaylight.Bothoftheseeffectsseemtobe7inlargeparttothemechanismofcolor8. Whentheeyeis9toacoloredareathereisanimmediatereadjustmentofthe10oftheeyetocolorinandaroundthearea11.Thisreadjustmentdoesnotpromptlyaffectthecolorseenbutusuallydoesaffectthenextareatowhichthe12isshifted.Thelongerthetimeofviewingthehigherthe13andthelargertheareathegreatertheeffectwillbe14itspersistenceinthe15viewingsituation.AsindicatedbytheworkofWrightandSchoutenitappearsthatat16forafirstapproximationfulladaptationtakesplaceover17timeiftheadaptingsourceismoderatelybrightandtheeyehasbeenin18darknessjustpreviously.Also19ofthepersistenceoftheeffectiftheeyeisshiftedaroundfromoneobjecttoanotherallofwhichareatsimilarbrightnessorhavesimilarcolorstheadaptationwilltendtobecome20overthewholeeye. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.9
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