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将5个字母ooops按此顺序入栈则有种不同的出栈顺序可以仍然得到ooops
文件系统的主要目的是
DoanimalshaverightsThisishowthequestionisusuallyput.Itsoundslikeausefulground-clearingwaytostart.71.Actuallyitisn’’tbecauseitassumesthatthereisanagreedaccountofhumanfightswhichissomethingtheworlddoesnothave. Ononeviewofrightstobesureitnecessarilyfollowsthatanimalshavenone.72.Somephilosophersarguethatrightsexistonlywithinasocialcontractaspartofanexchangeofdutiesandentitlements.Thereforeanimalscannothaverights.Theideaofpunishingatigerthatkillssomebodyisabsurdforexactlythesamereasonsoistheideathattigershaverights.Howeverthisisonlyoneaccountandbynomeansanuncontestedone.Itdeniesrightsnotonlytoanimalsbutalsotosomepeople―forinstancetoinfantsthementallyincapableandfuturegenerations.Inadditionitisunclearwhatforceacontractcanhaveforpeoplewhoneverconsentedtoit:howdoyoureplytosomebodywhosaysIdon’’tlikethiscontract Thepointisthis:withoutagreementontherightsofpeoplearguingabouttherightsofanimalsisfruitless.73.Itleadsthediscussiontoextremesattheoutset:itinvitesyoutothinkthatanimalsshouldbetreatedeitherwiththeconsiderationhumansextendtootherhumansorwithnoconsiderationatall.Thisisafalsechoice.Bettertostartwithanothermorefundamentalquestion:isthewaywetreatanimalsamoralissueatall Manydenyit.74.Arguingfromtheviewthathumansaredifferentfromanimalsineveryrelevantrespectextremistsofthiskindthinkthatanimalslieoutsidetheareaofmoralchoice.Anyregardforthesufferingofanimalsisseenatamistake―asentimentaldisplacementoffeelingthatshouldproperlybedirectedtootherhumans. Thisviewwhichholdsthattorturingamonkeyismorallyequivalenttochoppingwoodmayseembravelylogical.Infactitissimplyshallow:theconfusedcentreisrighttorejectit.Themostelementaryformofmoralreasoning―theethicalequivalentoflearningtocrawl―istoweighother’’sinterestsagainstone’’sown.Thisinturnrequiressympathyandimagination:withoutwhichthereisnocapacityformoralthought.Toseeananimalinpainisenoughformosttoengagesympathy.75.Whenthathappensitisnotamistake:itismankind’’sinstinctformoralreasoninginactionaninstinctthatshouldbeencouragedratherthanlaughedat.
设有关键字序列F={QGMZANPXH}下面序列是从上述序列出发建堆的结果
驱动调度算法中算法可能会随时改变移动臂的运动方向
Americanstodaydon’’tplaceaveryhighvalueonintellect.Ourheroesareathletesentertainersandentrepreneursnotscholars.Evenourschoolsarewherewesendourchildrentogetapracticaleducation―nottopursueknowledgeforthesakeofknowledge.Symptomsofpervasiveanti-intellectualisminourschoolsaren’’tdifficulttofind. SchoolshavealwaysbeeninasocietywherepracticalismoreimportantthanintellectualsayseducationwriterDianeRavitch.Schoolscouldbeacounterbalance.Ravitch’’slatestbookLeftBack:ACenturyofFailedSchoolReformstracestherootsofanti-intellectualisminourschoolsconcludingtheyareanythingbutacounterbalancetotheAmericandistasteforintellectualpursuits. Buttheycouldandshouldbe.Encouragingkidstorejectthelifeofthemindleavesthemvulnerabletoexploitationandcontrol.Withouttheabilitytothinkcriticallytodefendtheirideasandunderstandtheideasofotherstheycannotfullyparticipateinourdemocracy.ContinuingalongthispathsayswriterEarlShorrisWewillbecomeasecond-ratecountry.Wewillhavealesscivilsociety. IntellectisresentedasaformofpowerorprivilegewriteshistorianandprofessorRichardHofstadterinAnti-IntellectualisminAmericanLifeaPulitzer-Prizewinningbookontherootsofanti-intellectualisminUSpoliticsreligionandeducation.FromthebeginningofourhistorysaysHofstadterourdemocraticandpopulisturgeshavedrivenustorejectanythingthatsmellsofelitism.Practicalitycommonsenseandnativeintelligencehavebeenconsideredmorenoblequalitiesthananythingyoucouldlearnfromabook. RalphWaldoEmersonandotherTranscendentalistphilosophersthoughtschoolingandrigorousbooklearningputunnaturalrestraintsonchildren:WeareshutupinschoolsandcollegerecitationroomsforI0or15yearsandcomeoutatlastwithabellyfulofwordsanddonotknowathing.MarkTwain’’sHuckleberryFinnexemplifiedAmericananti-intellectualism.Itsheroavoidsbeingcivilized―goingtoschoolandlearningtoread―sohecanpreservehisinnategoodness. IntellectaccordingtoHofstadterisdifferentfromnativeintelligenceaqualitywereluctantlyadmire.Intellectisthecriticalcreativeandcontemplativesideofthemind.Intelligenceseekstograspmanipulatere-orderandadjustwhileintellectexaminesponderswonderstheorizescriticizesandimagines. Schoolremainsaplacewhereintellectismistrusted.Hofstadtersaysourcountry’’seducationalsystemisinthegripsofpeoplewhojoyfullyandmilitantlyproclaimtheirhostilitytointellectandtheireagernesstoidentifywithchildrenwhoshowtheleastintellectualpromise. TheviewsofRavitchandEmersononschoolingare
一个由高速缓冲存储器Cache与主存储器组成的二级存储系统已知主存容量为1MB按字节编址缓存容量为32KB采用组相联方式进行地址映射与变换主存与缓存的每一块为64B缓存共分8组 假定Cache的存取周期为20μs命中率为0.95希望采用Cache后的加速比大于10那么主存储器的存取速度应大于多少访存时CPU同时访问Cache和主存如Cache命中则中断主存访问
Americanstodaydon’’tplaceaveryhighvalueonintellect.Ourheroesareathletesentertainersandentrepreneursnotscholars.Evenourschoolsarewherewesendourchildrentogetapracticaleducation―nottopursueknowledgeforthesakeofknowledge.Symptomsofpervasiveanti-intellectualisminourschoolsaren’’tdifficulttofind. SchoolshavealwaysbeeninasocietywherepracticalismoreimportantthanintellectualsayseducationwriterDianeRavitch.Schoolscouldbeacounterbalance.Ravitch’’slatestbookLeftBack:ACenturyofFailedSchoolReformstracestherootsofanti-intellectualisminourschoolsconcludingtheyareanythingbutacounterbalancetotheAmericandistasteforintellectualpursuits. Buttheycouldandshouldbe.Encouragingkidstorejectthelifeofthemindleavesthemvulnerabletoexploitationandcontrol.Withouttheabilitytothinkcriticallytodefendtheirideasandunderstandtheideasofotherstheycannotfullyparticipateinourdemocracy.ContinuingalongthispathsayswriterEarlShorrisWewillbecomeasecond-ratecountry.Wewillhavealesscivilsociety. IntellectisresentedasaformofpowerorprivilegewriteshistorianandprofessorRichardHofstadterinAnti-IntellectualisminAmericanLifeaPulitzer-Prizewinningbookontherootsofanti-intellectualisminUSpoliticsreligionandeducation.FromthebeginningofourhistorysaysHofstadterourdemocraticandpopulisturgeshavedrivenustorejectanythingthatsmellsofelitism.Practicalitycommonsenseandnativeintelligencehavebeenconsideredmorenoblequalitiesthananythingyoucouldlearnfromabook. RalphWaldoEmersonandotherTranscendentalistphilosophersthoughtschoolingandrigorousbooklearningputunnaturalrestraintsonchildren:WeareshutupinschoolsandcollegerecitationroomsforI0or15yearsandcomeoutatlastwithabellyfulofwordsanddonotknowathing.MarkTwain’’sHuckleberryFinnexemplifiedAmericananti-intellectualism.Itsheroavoidsbeingcivilized―goingtoschoolandlearningtoread―sohecanpreservehisinnategoodness. IntellectaccordingtoHofstadterisdifferentfromnativeintelligenceaqualitywereluctantlyadmire.Intellectisthecriticalcreativeandcontemplativesideofthemind.Intelligenceseekstograspmanipulatere-orderandadjustwhileintellectexaminesponderswonderstheorizescriticizesandimagines. Schoolremainsaplacewhereintellectismistrusted.Hofstadtersaysourcountry’’seducationalsystemisinthegripsofpeoplewhojoyfullyandmilitantlyproclaimtheirhostilitytointellectandtheireagernesstoidentifywithchildrenwhoshowtheleastintellectualpromise. WhatdoAmericanparentsexpecttheirchildrentoacquireinschool
堆栈软堆栈寻址的寻址方式可看作是
指令流水线中出现数据相关时流水线将受阻可解决数据相关问题
若数据元素序列111213789．2345是采用下列排序方法之一得到的第二趟排序后的结果则该排序算法只能是
高度为7的AVL树最少有个结点
下列关于一地址指令的说法正确的是
设一段正文由字符集{ABCDEF}中的字母组成这6个字母在正文中出现的次数分别为{1218266434} 设每个字节由8位二进制位组成试计算按哈夫曼编码压缩存储这段正文共需多少个字节
设CPU与I/O设备以中断方式进行数据传送CPU响应中断时该I/O设备接口控制器送给CPU的中断向量表中断向量表存放中断向量指针是0800H0800H单元中的值为1200H则该I/O设备的中断服务程序在主存中的入口地址为
使用海明码来检出并纠正一位错当有效代码长度为8位时至少需要位校验位
如果一棵完全二叉树共有26个结点则必定有个结点的度为1
关于基址寻址和变址寻址下列说法中错误的是
虚拟存储管理系统的基于程序的局部性理论是指最近被访问的存储单元可能马上被访问
指令系统字长16位每个地址码为6位采用扩展操作码的方式试设计14条二地址指令100条一地址指令100条零地址指令 下图为指令译码逻辑图其中只给出了二地址指令的译码逻辑试补全一地址指令和零地址指令的译码逻辑
路由器采用方式来发送IP分组
DoanimalshaverightsThisishowthequestionisusuallyput.Itsoundslikeausefulground-clearingwaytostart.71.Actuallyitisn’’tbecauseitassumesthatthereisanagreedaccountofhumanfightswhichissomethingtheworlddoesnothave. Ononeviewofrightstobesureitnecessarilyfollowsthatanimalshavenone.72.Somephilosophersarguethatrightsexistonlywithinasocialcontractaspartofanexchangeofdutiesandentitlements.Thereforeanimalscannothaverights.Theideaofpunishingatigerthatkillssomebodyisabsurdforexactlythesamereasonsoistheideathattigershaverights.Howeverthisisonlyoneaccountandbynomeansanuncontestedone.Itdeniesrightsnotonlytoanimalsbutalsotosomepeople―forinstancetoinfantsthementallyincapableandfuturegenerations.Inadditionitisunclearwhatforceacontractcanhaveforpeoplewhoneverconsentedtoit:howdoyoureplytosomebodywhosaysIdon’’tlikethiscontract Thepointisthis:withoutagreementontherightsofpeoplearguingabouttherightsofanimalsisfruitless.73.Itleadsthediscussiontoextremesattheoutset:itinvitesyoutothinkthatanimalsshouldbetreatedeitherwiththeconsiderationhumansextendtootherhumansorwithnoconsiderationatall.Thisisafalsechoice.Bettertostartwithanothermorefundamentalquestion:isthewaywetreatanimalsamoralissueatall Manydenyit.74.Arguingfromtheviewthathumansaredifferentfromanimalsineveryrelevantrespectextremistsofthiskindthinkthatanimalslieoutsidetheareaofmoralchoice.Anyregardforthesufferingofanimalsisseenatamistake―asentimentaldisplacementoffeelingthatshouldproperlybedirectedtootherhumans. Thisviewwhichholdsthattorturingamonkeyismorallyequivalenttochoppingwoodmayseembravelylogical.Infactitissimplyshallow:theconfusedcentreisrighttorejectit.Themostelementaryformofmoralreasoning―theethicalequivalentoflearningtocrawl―istoweighother’’sinterestsagainstone’’sown.Thisinturnrequiressympathyandimagination:withoutwhichthereisnocapacityformoralthought.Toseeananimalinpainisenoughformosttoengagesympathy.75.Whenthathappensitisnotamistake:itismankind’’sinstinctformoralreasoninginactionaninstinctthatshouldbeencouragedratherthanlaughedat. DoanimalshaverightsThisishowthequestionisusuallyput.Itsoundslikeausefulground-clearingwaytostart.71.Actuallyitisn’’tbecauseitassumesthatthereisanagreedaccountofhumanfightswhichissomethingtheworlddoesnothave. Ononeviewofrightstobesureitnecessarilyfollowsthatanimalshavenone.72.Somephilosophersarguethatrightsexistonlywithinasocialcontractaspartofanexchangeofdutiesandentitlements.Thereforeanimalscannothaverights.Theideaofpunishingatigerthatkillssomebodyisabsurdforexactlythesamereasonsoistheideathattigershaverights.Howeverthisisonlyoneaccountandbynomeansanuncontestedone.Itdeniesrightsnotonlytoanimalsbutalsotosomepeople―forinstancetoinfantsthementallyincapableandfuturegenerations.Inadditionitisunclearwhatforceacontractcanhaveforpeoplewhoneverconsentedtoit:howdoyoureplytosomebodywhosaysIdon’’tlikethiscontract Thepointisthis:withoutagreementontherightsofpeoplearguingabouttherightsofanimalsisfruitless.73.Itleadsthediscussiontoextremesattheoutset:itinvitesyoutothinkthatanimalsshouldbetreatedeitherwiththeconsiderationhumansextendtootherhumansorwithnoconsiderationatall.Thisisafalsechoice.Bettertostartwithanothermorefundamentalquestion:isthewaywetreatanimalsamoralissueatall Manydenyit.74.Arguingfromtheviewthathumansaredifferentfromanimalsineveryrelevantrespectextremistsofthiskindthinkthatanimalslieoutsidetheareaofmoralchoice.Anyregardforthesufferingofanimalsisseenatamistake―asentimentaldisplacementoffeelingthatshouldproperlybedirectedtootherhumans. Thisviewwhichholdsthattorturingamonkeyismorallyequivalenttochoppingwoodmayseembravelylogical.Infactitissimplyshallow:theconfusedcentreisrighttorejectit.Themostelementaryformofmoralreasoning―theethicalequivalentoflearningtocrawl―istoweighother’’sinterestsagainstone’’sown.Thisinturnrequiressympathyandimagination:withoutwhichthereisnocapacityformoralthought.Toseeananimalinpainisenoughformosttoengagesympathy.75.Whenthathappensitisnotamistake:itismankind’’sinstinctformoralreasoninginactionaninstinctthatshouldbeencouragedratherthanlaughedat.
一棵二叉树的后序遍历序列为DABEC中序遍历序列为DEBAC则先序遍历序列为
下列关于加法器的说法错误的是
设有10阶矩阵A其对角线以上的元素aij1≤j≤101＜i＜j均取值为-3其他矩阵元素为正整数现将矩阵A压缩存储放在一维数组F[m]中则m为
在散列表中当装填因子非常接近1时线性探测类似于查找
假定系统拥有某类资源10个在该系统上运行的所有作业其对该类资源的需求量不会超过2个为了提高资源利用率我们打算对这种资源采用动态分配但用限制系统中并发执行的作业数来防止发生死锁你认为作业调度允许并发执行的最大作业数应是
DoanimalshaverightsThisishowthequestionisusuallyput.Itsoundslikeausefulground-clearingwaytostart.71.Actuallyitisn’’tbecauseitassumesthatthereisanagreedaccountofhumanfightswhichissomethingtheworlddoesnothave. Ononeviewofrightstobesureitnecessarilyfollowsthatanimalshavenone.72.Somephilosophersarguethatrightsexistonlywithinasocialcontractaspartofanexchangeofdutiesandentitlements.Thereforeanimalscannothaverights.Theideaofpunishingatigerthatkillssomebodyisabsurdforexactlythesamereasonsoistheideathattigershaverights.Howeverthisisonlyoneaccountandbynomeansanuncontestedone.Itdeniesrightsnotonlytoanimalsbutalsotosomepeople―forinstancetoinfantsthementallyincapableandfuturegenerations.Inadditionitisunclearwhatforceacontractcanhaveforpeoplewhoneverconsentedtoit:howdoyoureplytosomebodywhosaysIdon’’tlikethiscontract Thepointisthis:withoutagreementontherightsofpeoplearguingabouttherightsofanimalsisfruitless.73.Itleadsthediscussiontoextremesattheoutset:itinvitesyoutothinkthatanimalsshouldbetreatedeitherwiththeconsiderationhumansextendtootherhumansorwithnoconsiderationatall.Thisisafalsechoice.Bettertostartwithanothermorefundamentalquestion:isthewaywetreatanimalsamoralissueatall Manydenyit.74.Arguingfromtheviewthathumansaredifferentfromanimalsineveryrelevantrespectextremistsofthiskindthinkthatanimalslieoutsidetheareaofmoralchoice.Anyregardforthesufferingofanimalsisseenatamistake―asentimentaldisplacementoffeelingthatshouldproperlybedirectedtootherhumans. Thisviewwhichholdsthattorturingamonkeyismorallyequivalenttochoppingwoodmayseembravelylogical.Infactitissimplyshallow:theconfusedcentreisrighttorejectit.Themostelementaryformofmoralreasoning―theethicalequivalentoflearningtocrawl―istoweighother’’sinterestsagainstone’’sown.Thisinturnrequiressympathyandimagination:withoutwhichthereisnocapacityformoralthought.Toseeananimalinpainisenoughformosttoengagesympathy.75.Whenthathappensitisnotamistake:itismankind’’sinstinctformoralreasoninginactionaninstinctthatshouldbeencouragedratherthanlaughedat.
Americanstodaydon’’tplaceaveryhighvalueonintellect.Ourheroesareathletesentertainersandentrepreneursnotscholars.Evenourschoolsarewherewesendourchildrentogetapracticaleducation―nottopursueknowledgeforthesakeofknowledge.Symptomsofpervasiveanti-intellectualisminourschoolsaren’’tdifficulttofind. SchoolshavealwaysbeeninasocietywherepracticalismoreimportantthanintellectualsayseducationwriterDianeRavitch.Schoolscouldbeacounterbalance.Ravitch’’slatestbookLeftBack:ACenturyofFailedSchoolReformstracestherootsofanti-intellectualisminourschoolsconcludingtheyareanythingbutacounterbalancetotheAmericandistasteforintellectualpursuits. Buttheycouldandshouldbe.Encouragingkidstorejectthelifeofthemindleavesthemvulnerabletoexploitationandcontrol.Withouttheabilitytothinkcriticallytodefendtheirideasandunderstandtheideasofotherstheycannotfullyparticipateinourdemocracy.ContinuingalongthispathsayswriterEarlShorrisWewillbecomeasecond-ratecountry.Wewillhavealesscivilsociety. IntellectisresentedasaformofpowerorprivilegewriteshistorianandprofessorRichardHofstadterinAnti-IntellectualisminAmericanLifeaPulitzer-Prizewinningbookontherootsofanti-intellectualisminUSpoliticsreligionandeducation.FromthebeginningofourhistorysaysHofstadterourdemocraticandpopulisturgeshavedrivenustorejectanythingthatsmellsofelitism.Practicalitycommonsenseandnativeintelligencehavebeenconsideredmorenoblequalitiesthananythingyoucouldlearnfromabook. RalphWaldoEmersonandotherTranscendentalistphilosophersthoughtschoolingandrigorousbooklearningputunnaturalrestraintsonchildren:WeareshutupinschoolsandcollegerecitationroomsforI0or15yearsandcomeoutatlastwithabellyfulofwordsanddonotknowathing.MarkTwain’’sHuckleberryFinnexemplifiedAmericananti-intellectualism.Itsheroavoidsbeingcivilized―goingtoschoolandlearningtoread―sohecanpreservehisinnategoodness. IntellectaccordingtoHofstadterisdifferentfromnativeintelligenceaqualitywereluctantlyadmire.Intellectisthecriticalcreativeandcontemplativesideofthemind.Intelligenceseekstograspmanipulatere-orderandadjustwhileintellectexaminesponderswonderstheorizescriticizesandimagines. Schoolremainsaplacewhereintellectismistrusted.Hofstadtersaysourcountry’’seducationalsystemisinthegripsofpeoplewhojoyfullyandmilitantlyproclaimtheirhostilitytointellectandtheireagernesstoidentifywithchildrenwhoshowtheleastintellectualpromise. Whatdoestheauthorthinkofintellect
设一段正文由字符集{ABCDEF}中的字母组成这6个字母在正文中出现的次数分别为{1218266434}
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