新GRE数学样题解析.doc

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

2、ethatbeginwith“Beginskippablefiguredescription”andendwith“Endskippablefiguredescription.”   MathematicalEquationsandExpressionsThisdocumentincludesmathematicalequationsandexpressions.Someofthemathematicalequationsandexpressionsarepresentedasgraphics.Incaseswhereamathematicaleq

3、uationorexpressionispresentedasagraphic,averbalpresentationisalsogivenandtheverbalpresentationcomesdirectlyafterthegraphicpresentation.Theverbalpresentationisingreenfonttoassistreadersintellingthetwopresentation-modesapart. Readersusingaudioalonecansafelyignorethegraphicalpres

4、entations,andreadersusingvisualpresentationsmayignoretheverbalpresentations.   IntroductionTherevisedQuantitativeReasoningsectioncontainsfourtypesofquestions:Multiple-choiceQuestions—SelectOneAnswerChoiceMultiple-choiceQuestions—SelectOneorMoreAnswerChoicesNumericEntryQuestion

5、sQuantitativeComparisonQuestionsEachquestionappearseitherindependentlyasadiscretequestionoraspartofasetofquestionscalledaDataInterpretationset.AllofthequestionsinaDataInterpretationsetarebasedonthesamedatapresentedintables,graphs,orotherdisplaysofdata.Belowaredescriptions,dire

6、ctions,andsamplesofeachtypeofquestion...   Multiple-ChoiceQuestions—SelectOneAnswerChoiceThesequestionsaremultiple-choicequestionsthataskyoutoselectonlyoneanswerchoicefromalistoffivechoices.   SampleQuestionsDirections:Selectasingleanswerchoice.Samplequestion1belowisbasedonfig

7、ure1.Figure1   Beginskippablefiguredescription.Figure1isacirclewithcenterC.Twodiametersofthecirclearedrawn,dividingthecircleinto4sectors.Twononadjacentsectorsareshaded,andthecentralangleofoneoftheunshadedsectorsmeasures160degrees.   Endskippablefiguredescription.1.  Figure1abo

8、veshowsacirclewithcenterCandradius6.Whatisthesumoftheareasoft