为你找到 1000 条关于 第3章题目2 的结果
下列关于世界第一台电子计算机ENIAC的叙述中,错误的是()。
世界上第一台电子数字计算机诞生于()。
世界上第一台电子数字计算机采用的逻辑元件是()。
以人类历史上第一台计算机为判断标准。
5.3-2TCP连接是一条真正的物理连接,而不是虚连接。
5.4-2连续ARQ协议中接收方一般采用累积确认的方式,即不必对收到的分组逐个发送确认,而是对按序到达的最后一个分组发送确认。
5.4-3累积确认的优点是:容易实现,即使确认丢失也不必重传,也能向发送方反映出接收方已经正确收到的所有分组的信息。
5.6-3关于TCP和UDP,下列说法正确的是()。
5.8-2在快恢复算法中,当前发送端的cwnd=30,门限值ssthresh=34,如果现在出现了丢包现象,那么重新设置后的cwnd=()
6-2计算机网络中DNS服务所用运输层协议是()。
6-3由多个标号组成的完整的域名总共不超过()个字符。
冯特建立第一个科学心理学实验室的时间在哪年?
GIS的基本组成包括【】
世界上第一台计算机诞生在剑桥大学。()
PartIIReadingComprehensionDirections:Thereareseveralpassagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).Youshoulddecideonthebestchoice.PassageOneQuestions2to6arebasedonthefollowingpassage.“Chinaisexpectedtocompleteitsfirstexploration(探索)ofthemoonin2010andwillfoundamoonbasejustaswedidontheNorthandSouthPoles,”OuyangZiyuan,headofChina’smoonexplorationprogram,promisedduringnationalscienceandtechnologyweek.Afteritsfirstmaninspace,Chinaplansaspacelaboratory,alunarorbitertolookforvaluableelementsandminerals,robotlandingsonthemoonandthenthehumantouchdown.Thepriceofspaceexplorationisenormous.RussiaandtheUS,theonlytwocountriestohaveachievedmannedflight,arestrugglingtokeeptheirnewinvestment,theinternationalspacestation.ButChina,whichhasalongtraditioninphysics,mathematicsandengineering,findsitsdoctoralgraduateswelcomedintheUSandEuropefordecades.Andithasbeenabletolearnfrom40yearsofpioneeringsuccessesandmistakesbytheUSSRandtheUSA.Spaceflightisagambleandthestakes(赌注)arehigh.Ifsuccessful,Chinacouldbecomeamemberoftheworld’smostexclusiveclub,setupasecondhomeonthemoonandgetapowerfulhandatthestrategicbargainingtable.TwodesignersfromtheShenzhouIIIprojectsaidthat12astronautsnowareundergoingintensivetraining.Onemoreunmannedspaceflightisplannedbeforethefirstmannedlaunch.ExpertssaythattheShenzhouspacecraftalreadyprovidesChinawithaspacevehiclecapableofmounting(发起)alunarprogram.ChinesescientistshavealsopredictedthatMarswillbethenexttargetafterthemoon.2.AccordingtoOuyangZiyuan,________.
PartIIReadingComprehensionDirections:Thereareseveralpassagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).Youshoulddecideonthebestchoice.PassageOneQuestions2to6arebasedonthefollowingpassage.“Chinaisexpectedtocompleteitsfirstexploration(探索)ofthemoonin2010andwillfoundamoonbasejustaswedidontheNorthandSouthPoles,”OuyangZiyuan,headofChina’smoonexplorationprogram,promisedduringnationalscienceandtechnologyweek.Afteritsfirstmaninspace,Chinaplansaspacelaboratory,alunarorbitertolookforvaluableelementsandminerals,robotlandingsonthemoonandthenthehumantouchdown.Thepriceofspaceexplorationisenormous.RussiaandtheUS,theonlytwocountriestohaveachievedmannedflight,arestrugglingtokeeptheirnewinvestment,theinternationalspacestation.ButChina,whichhasalongtraditioninphysics,mathematicsandengineering,findsitsdoctoralgraduateswelcomedintheUSandEuropefordecades.Andithasbeenabletolearnfrom40yearsofpioneeringsuccessesandmistakesbytheUSSRandtheUSA.Spaceflightisagambleandthestakes(赌注)arehigh.Ifsuccessful,Chinacouldbecomeamemberoftheworld’smostexclusiveclub,setupasecondhomeonthemoonandgetapowerfulhandatthestrategicbargainingtable.TwodesignersfromtheShenzhouIIIprojectsaidthat12astronautsnowareundergoingintensivetraining.Onemoreunmannedspaceflightisplannedbeforethefirstmannedlaunch.ExpertssaythattheShenzhouspacecraftalreadyprovidesChinawithaspacevehiclecapableofmounting(发起)alunarprogram.ChinesescientistshavealsopredictedthatMarswillbethenexttargetafterthemoon.2.AccordingtoOuyangZiyuan,________.
孙子兵法的作者是孙武。