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1、SectionBA.launchedB.unpleasantC.applyingD.technicallyE.impactF.coatingG.fixedH.miraculouslyI.superiorJ.advancesHowwouldyouliketowearthesameunderwear（内衣裤）forweeks?Owingtotheworkthathasgoneintodevelopingintelligentmaterials,thismaynotbeas41asitsounds.Self-cleaningclotheshaven
2、owbeencreated,andthesenewmaterialsprovide42resistancetodirtaswellaswater.Asaresult,theyrequiremuchlesscleaningthantraditionalmaterials.Thecreationofself-cleaningclothesprovidesanexampleofhownaturehelpsscientistsdevelopbetterproducts.Thisself-cleaningnatureisknownasthe"lotus
3、effect.Thenamecomes,ofcourse,fromthelotusleaves,whicharefamousforgrowinginmuddylakesandriverswhileremainingalmost43clean.Byobservingnature,scientistsare44thequalitiesofthelotusleavestothematerialstheyhaveengineered・Becauseofthis,someremarkablenewproductshavebeen45•Amongthem
4、arespecialwindowsthatareresistanttodirtandwater.Aspecial46onthesewindowsnotonlypreventsdirtfromstickingtotheirsurfaces,butalsoallowsdusttobeeasilywashedoffbytherain.Infact,thesenewwindowshavealreadybeen47tosomecars.Evenwhentravelingathighspeedthroughrain,thesecarsneverhavet
5、ousetheirwindshieldwipers（雨刮器）.Althoughwehavealreadyseensomepracticalapplications,evenmoredramatic48willbemadeinthefuture,andtheywill,perhaps,changeourworldcompletely.Undoubtedly,technologyisanimportantdevelopment,anditwillhaveanevenbigger49onourlives.SectionBA.primarilyB.s
6、imilarC.consideratelyD.connectionE.instructedEseriesG.personalH.servedI.definedJ.environmentInastudyoftheuniversityofMinnesota,twins（someraisedtogetherandotherswhohadgrownupapart）weretestedforawiderangeofpersonalitytraits（特征）.Intermsofhappiness—41_astheabilitytoenjoylife—tw
7、inswhoareseparatedsoonafterbirthweremuchlessalikethantwinsraisedtogether-Butwhenitcomestounhappiness,thetwinsraisedapart—somewithoutcontactforaslongas64years—wereas42asthosewhohadgrownuptogetherWhyisunhappinesslessinfluencedby43?Whenwearehappy,wearemoreresponsivetopeopleand
8、keepup44betterthanwhenwearefeelingsad.ThisdoesrTtmean,however,thatsomepeoplearebom
