(2~系统~begin{equation}dot{x}=left[begin{matrix}1&2&-10&1&01&-4&3end{matrix}right]x+left[begin{matrix}001end{matrix}right]u，y=left[begin{matrix}1&-1&1end{matrix}right]x~的能控部分子系统的状态向量是end{equation})

开环受控系统(sum(A,b^T))的系数矩阵如下:试求状态反馈矩阵，使闭环系统极点配置在(lambda_{1,2}=-1pm2j).(A=left[begin{matrix}-2&-34&-9end{matrix}right],b=left[begin{matrix}31end{matrix}right])

已知受控系统(sum(A,b,c^T))的系数矩阵为(A=left[begin{matrix}-2&10&-1end{matrix}right],b=left[begin{matrix}01end{matrix}right]，c^T=left[begin{matrix}1&0end{matrix}right])则(M)取以下何值时，全维状态观测器(dot{hat{x}}=(A+Mc)hat{x}+bu-Mtilde{y})的极点为两重根-3?

已知受控系统(sum(A,b,c^T))，系数矩阵为(A=left[begin{matrix}1&0&03&-1&10&2&0end{matrix}right],b=left[begin{matrix}211end{matrix}right]，c^T=left[begin{matrix}0&0&1end{matrix}right]),设计全维状态观测器(dot{hat{x}}=(A+Mc)hat{x}+bu-Mtilde{y})，则(M)取以下何值时，能使得观测器的极点为-3、-4和-5?

试用(V(x)=x_1^2+x_2^2)研究如下系统(dot{x}_1=x_2)(dot{x}_2=-x_1-x_2)在原点的稳定性。

试用(V(x)=2x_1^2+x_2^2)研究如下系统(dot{x}_1=x_2)(dot{x}_2=-x_1-x_2)在原点的稳定性。

男性，65岁。陈旧性广泛前壁心肌梗死7年，活动后胸闷、心悸、气短2年，近1周出现夜间阵发性呼吸困难。体检：端坐呼吸，BP160/90mmHg，P120次/分，P2亢进，心脏各瓣膜区未闻及杂音。双肺底可闻及湿性啰音，双肺散在哮鸣音，双下肢无水肿。空腹血糖4.2mmol/L。心电图：V1-V6导联ST段压低0.05~0.1mV。血清肌钙蛋白正常。该患者暂不宜立即使用

1936年11月2日（）建立了世界上第一个电视发射台，开始了电视节目的定期播出。

2.我国实务中企业利润表通常采用的形式是（）。

反思小说以茹志鹃1979年2月在《人民文学》上发表的短篇小说（）为标志。

2、发电厂甲与施工单位乙签订了价款为5000万元的固定重甲建设工程施工合同，则这笔5000万元工程价款是（）。

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,________.

2，世界上最早系统论述教育教学思想的专著：《学记》。

2，学科中心主义课程论包括（）