大工春《经济学》在线作业 -及参考答案（in the spring of economics online homework - and reference answers）

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1、大工12春《经济学》在线作业1-3及参考答案（Inthespringof12economicsonlinehomework1-3andreferenceanswers）Greatwork12springeconomicsonlinehomework1Singlequestions(5questions,30points)1.accordingtothelawofsupply,thesupplycurve.A.upwardtiltB.downwardslopingC.andordinateverticalD.parallelwitho

2、rdinateThecorrectanswer:Afullmarks:6points2.generallyspeaking,ifthepriceofacommodityislow,then(.LessdemandforA.MoredemandforB.C.needsacertainamountD.nodemandThecorrectanswer:Bfullmarks:6points3.thepremiseofeconomicresearchis().EfficientallocationofA.resourcesScarcityof

3、B.resourcesC.economicsystemisgivenMakefulluseofD.resourcesThecorrectanswer:Bfullmarks:6points4.whenthemarginalproductionisgreaterthanzero,thetotaloutput().A.reductionB.invariantC.increaseD.decreasesfirstandthenincreasesThecorrectanswer:Cfullmarks:6points5.ifthepriceofa

4、commodityincreasesby1%,andthedemanddecreasesby2%,theelasticityofdemandofthecommoditywillbemet.A.islessthan1B.equals1C.isgreaterthan1D.invariantThecorrectanswer:Cfullmarks:6points(5multiple-choicequestion,30.)1.thefollowingoptionsarethemaincontentsofmicroeconomicsresear

5、ch.A.pricetheoryB.inflationC.consumptiontheoryD.unemploymentE.marketfailureThecorrectanswer:ACEfullmarks:6points2.inthefollowingdescriptionoftheindifferencecurve,thecorrectoneis().TheutilityofA.onthesameindifferencecurveisdifferentTheslopeoftheB.indifferencecurveisgett

6、ingsmallerC.indifferencecurvescanintersectonthesameplaneTheslopeofD.indifferencecurveequalstotheratioofmarginalutilityTheutilityoftheindifferencecurverepresentedbythedistancefromtheoriginofE.issmallerThecorrectanswer:BDfullmarks:6points3.amongthefollowinggroupsofgoods,

7、thecomplementarygoodsare().A.biscuitsandbreadB.gasolineandautomobilesC.mouseandmousepadD.KFCcomboandMcDonald'sComboE.computerhardwareandsoftwareThecorrectanswer:BCEfullmarks:6points4.thefollowingstatementaboutprofitandprofitiscorrect.A.economicprofitisthetotalincomemin

8、ustheexplicitcostofanenterpriseB.economicprofitsandaccountingprofitsarethesameC.marginalrevenuereferstotheaverageinco