gmat全真题一---2

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1、GMAT全真题一---2GMAT全真题一--212.Theenvironmentalist'sstatements,iftruebestsupportwhichofthefollowingasaconclusion?(A)Theuseoftechnologyisthereasonfortheincreasingencroachmentofpeopleonnature.(B)Itispossibletodeterminehowmanyfishareyintheseainsomewayotherthanbycatchingfish.(C)Theproportion

2、ofmarinefishthatarecaughtisashighastheproportionofrain-foresttreesthatarecutdowneachyear.(D)Moderntechnologieswasteresourcesbycatchinginediblefish.(E)Marinefishcontinuetobeanendangeredresource.13.Biometricaccess-controlsystems-thoseusingfingerprints,voiceprints,etc.toregulateadmitta

3、ncetorestrictedareas-workbydegreesofsimilarity,notbyidentity.Afterall,eventhesamefingerwillrarelyleaveexactlyidenticalprints.Suchsystemscanbeadjustedtominimizerefusalsofaccesstolegitimateaccess-seekers.Suchadjustments,however,increasethelikelihoodofadmittingimpostors.Whichofthefollo

4、wingconclusionsismoststronglysupportedbytheinformationabove?(A)Ifabiometricaccess-controlsystemweremadetoworkbyidentity,itwouldnotproduceanycorrectadmittancedecisions.(B)Ifabiometricaccess-controlsystemreliablypreventsimpostorsfrombeingadmitted,itwillsometimesturnawaylegitimateacces

5、s-seekers.(C)Biometricaccess-controlsystemsareappropriateonlyinsituationsinwhichadmittanceofimpostorsislessofaproblemthanismistakenrefusalofaccess.(D)Nobiometricaccess-controlsystems-based,forexample,onnumericalcodes-arelesslikelythanbiometriconestoadmitimpostors.(E)Anyonechoosingan

6、access-controlsystemshouldbasethechoicesolelyontheratiooffalserefusalstofalseadmittances.14.Althoughcomputerscanenhancepeople'sabilitytocommunicate,computergamesareacauseofunderdevelopedcommunicationskillsinchildren.After-schoolhoursspentplayingcomputergamesarehoursnotspenttalkingwi

7、thpeople.Therefore,childrenwhospendalltheirsparetimeplayingthesegameshavelessexperienceininterpersonalcommunicationthanotherchildrenhave.Theargumentdependsonwhichofthefollowingassumptions?(A)Passiveactivitiessuchaswatchingtelevisionandlisteningtomusicdonothinderthedevelopmentofcommu

8、nicationskillsinchi