新GRE数学样题解析

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1、最新：新gre数学样题及解析GRE®RevisedGeneralTest: QuantitativeReasoningSampleQuestions   FiguresThisdocumentincludesfigures,whichappearonscreen.Followingeachfigureonscreenistextdescribingthatfigure.Readersusingvisualpresentationsofthefiguresmaychoosetoskippartsofthetextdescribingthefigurethatbeginwith“Beg

2、inskippablefiguredescription”andendwith“Endskippablefiguredescription.”   MathematicalEquationsandExpressionsThisdocumentincludesmathematicalequationsandexpressions.Someofthemathematicalequationsandexpressionsarepresentedasgraphics.Incaseswhereamathematicalequationorexpressionispresentedasagra

3、phic,averbalpresentationisalsogivenandtheverbalpresentationcomesdirectlyafterthegraphicpresentation.Theverbalpresentationisingreenfonttoassistreadersintellingthetwopresentation-modesapart. Readersusingaudioalonecansafelyignorethegraphicalpresentations,andreadersusingvisualpresentationsmayignor

4、etheverbalpresentations.   IntroductionTherevisedQuantitativeReasoningsectioncontainsfourtypesofquestions:Multiple-choiceQuestions—SelectOneAnswerChoiceMultiple-choiceQuestions—SelectOneorMoreAnswerChoicesNumericEntryQuestionsQuantitativeComparisonQuestionsEachquestionappearseitherindependentl

5、yasadiscretequestionoraspartofasetofquestionscalledaDataInterpretationset.AllofthequestionsinaDataInterpretationsetarebasedonthesamedatapresentedintables,graphs,orotherdisplaysofdata.Belowaredescriptions,directions,andsamplesofeachtypeofquestion.   Multiple-ChoiceQuestions—SelectOneAnswerChoic

6、eThesequestionsaremultiple-choicequestionsthataskyoutoselectonlyoneanswerchoicefromalistoffivechoices.   SampleQuestionsDirections:Selectasingleanswerchoice.Samplequestion1belowisbasedonfigure1.Figure1   Beginskippablefiguredescription.Figure1isacirclewithcenterC.Twodiametersofthecirclearedraw

7、n,dividingthecircleinto4sectors.Twononadjacentsectorsareshaded,andthecentralangleofoneoftheunshadedsectorsmeasures160degrees.   Endskippablefiguredescription.1.  Figure1aboveshowsacirclewithcenterCandradius6.Whatisthesumoftheareasofthet