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假定需求函数为Q=10-2P(Q:需求;P:价格),则在P=1处需求弹性系数是()。
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假定某耐用消费品的需求函数为Qd=400-5P时的均衡价格是50当需求函数变为Qd=600-5P时假
低于50
高于50
等于50
上升
设某商品的需求函数为Q=160-2P其中QP分别表示需求量与价格.如果该商品需求弹性等于1则商品的价
假定效用函数为U=q0.5+2Mq为消费的商品量M为收入求1需求函数2反需求函数3P=0.05q=2
假定某商品的需求函数为P=300-6Q供给函数为P=60+2Q则均衡价格和均衡常量分别为
P=180,Q=20
P=180,Q=60
P=120,Q=30
P=100,Q=20
设某产品的需求函数为Q=QP其对价格P的弹性εp=0.2.则当需求量为10000件时价格增加1元会使
假定对应价格P与需求量Q的连续可微的需求函数为PQ利用数理方法说明需求价格弹性与收益的关系
设商品的需求函数为Q=100-5P其中QP分别表示需求量和价格如果商品需求弹性大于1则商品价格的取值
已知某商品的需求量Q对价格的弹性为pln3假设该商品的最大需求量为1200则需求量Q关于价格p的函数
Q=1200·3
-p
Q=1200·3e
-p
Q=1200·e
-3p
Q=1200·3
p
商品的均衡价格与均衡数量分别为
P=5 Q=20
P=4 Q=10
P=5 Q=15
P=6 Q=20
假定牛肉的市场需求函数为Q=6000-1000PQ是每年对牛肉的需求量单位为吨P是价格单位为元如果价
-0.61
0.61
-0.71
0.71
设某商品的需求函数为Q=100-5P其中价格P∈020Q为需求量.已知收益为价格的减函数即收益随价格
设某产品的需求函数为Q=QP其对价格P的弹性εP=0.2则当需求量为10000件时价格增加1元会使产
某企业商品的需求价格函数为P=100-4Q供给价格函数为P=40+2Q则该商品的均衡价格和均衡产量分
P=10 Q=6
P=60 Q=10
P=40 Q=6
P=20 Q=20
某一时期内A商品的需求函数Qd=50-5P供给函数Qs=-10+5PQd为需求量Qs为供给量P为价格
P=5 Q=20
P=4 Q=10
P=5 Q=15
P=6 Q=20
假定某商品的需求价格为P=100-4Q供给价格P=40+2Q均衡价格和均衡产量应为
P=60,Q=10
P=10,Q=6
P=40,Q=6
P=20,Q=20
假定某耐用消费品的需求函数Q=400-5P时的均衡价格为50当需求函数变为Q=600-5P时供给不变
低于50
高于50
等于50
NENO
假定一个垄断者的产品需求曲线为P=10-3Q成本函数为TC=Q2+2Q求垄断企业利润最大时的产量价格
某一时期内A商品的需求函数Qd=50-5P供给函数Qs=-10+5PQd为需求量Qs为供给量P为价格
需求价格弹性是需求量变动对价格变动的敏感程度
需求价格弹性等于价格的变动量除以需求的变动量
收入弹性描述的是收入与价格的关系
供给收入弹性描述的是供给量变动对销售者收入变化的反应程度
设某产品的需求函数Q=QP它对价格P的弹性为0.2则当需求量为10000件时价格增加1元会使产品收益
设某产品的需求函数为Q=Qp其对价格p的弹性εp=0.2则当需求量为10000件时价格增加1元会使
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某小麦群体中染病性植株rr有9%抗病性植株RR或Rr为91%抗病性植株可正常生长开花和结实而染病性植株的幼苗致死经三代随机交配后该小麦群体中染病性植株的百分比是多少
Itisunimaginableforsomeoneinsuchahigh______inthegovernmenttobehavesobadlyinpublic.
In1999thepriceofoilhovered around$16abarrel.By2008ithad21the$100abarrel mark.Thereasonsforthesurge22fromthedramatic growthoftheeconomiesofChinaandIndiatowidespread23 inoil-producingregionsincludingIraqandNigeria’sdeltaregion. Triple-digitoilpriceshave24theeconomicandpolitical mapoftheworld25someoldnotionsofpower.Oil-rich nationsareenjoyinghistoricgainsandopportunities26 majorimporters—includingChinaandIndiahometoathirdoftheworld’s population—27risingeconomicandsocialcosts. Managingthisneworderisfastbecomingacentral28 ofglobalpolitics.Countriesthatneedoilareclawingateachother to29scarcesuppliesandarewillingtodealwithany government30howunpleasanttodoit. Inmanypoornationswithoiltheprofitsarebeinglosttocorruption 31thesecountriesoftheirbesthopefordevelopment.And oilisfuelingenormousinvestmentfundsrunbyforeigngovernments 32someintheWestseeasanewthreat. CountrieslikeRussiaVenezuelaandIranarewellsuppliedwithrising oil33achangereflectedinnewlyaggressiveforeign policies.Butsomeunexpectedcountriesarereapingbenefits34 costsfromhigherprices.ConsiderGermany.35 itimportsvirtuallyallitsoilithasprosperedfromextensivetradewitha boomingRussiaandtheMiddleEast.GermanexportstoRussia36 128percentfrom2001to2006.IntheUnitedStates asalreadyhighgaspricesrose37higherinthespringof 2008theissuecroppedupinthepresidentialcampaignwithSenatorsMcCain andObama38forafederalgastaxholidayduringthepeak summerdrivingmonths.Anddrivinghabitsbeganto39as salesofsmallcarsjumpedandmasstransportsystems40 thecountryreportedasharpincreaseinriders.
Johnwasveryupsetbecausehewas______bythepolicewithbreakingthelaw.
完全连锁不完全连锁
In1999thepriceofoilhovered around$16abarrel.By2008ithad21the$100abarrel mark.Thereasonsforthesurge22fromthedramatic growthoftheeconomiesofChinaandIndiatowidespread23 inoil-producingregionsincludingIraqandNigeria’sdeltaregion. Triple-digitoilpriceshave24theeconomicandpolitical mapoftheworld25someoldnotionsofpower.Oil-rich nationsareenjoyinghistoricgainsandopportunities26 majorimporters—includingChinaandIndiahometoathirdoftheworld’s population—27risingeconomicandsocialcosts. Managingthisneworderisfastbecomingacentral28 ofglobalpolitics.Countriesthatneedoilareclawingateachother to29scarcesuppliesandarewillingtodealwithany government30howunpleasanttodoit. Inmanypoornationswithoiltheprofitsarebeinglosttocorruption 31thesecountriesoftheirbesthopefordevelopment.And oilisfuelingenormousinvestmentfundsrunbyforeigngovernments 32someintheWestseeasanewthreat. CountrieslikeRussiaVenezuelaandIranarewellsuppliedwithrising oil33achangereflectedinnewlyaggressiveforeign policies.Butsomeunexpectedcountriesarereapingbenefits34 costsfromhigherprices.ConsiderGermany.35 itimportsvirtuallyallitsoilithasprosperedfromextensivetradewitha boomingRussiaandtheMiddleEast.GermanexportstoRussia36 128percentfrom2001to2006.IntheUnitedStates asalreadyhighgaspricesrose37higherinthespringof 2008theissuecroppedupinthepresidentialcampaignwithSenatorsMcCain andObama38forafederalgastaxholidayduringthepeak summerdrivingmonths.Anddrivinghabitsbeganto39as salesofsmallcarsjumpedandmasstransportsystems40 thecountryreportedasharpincreaseinriders.
Mymotherisalightsleeper______toanysoundevenaslowasthehummingofamosquito
Whenapsychologistdoesageneralexperimentaboutthehumanmindheselectspeople______andasksthemquestions.
用基因型Aabb的玉米植株的花粉给基因型为aaBb的玉米植株授粉根据胚乳的基因型将籽粒分类预期将形成哪些类型的籽粒它们的比例如何
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