[完形填空]  （课外资料）Inthegrass,ababyduckwashatched(孵化)outinacollegebiologylabwithabackwardleftfoot.Atthetime,itprobablywouldn’thavesurvived,ifMikeGarydidn’trecommendaproperoperationtocutoffthatbadfoot.Monthsafterthehealingprocess,engineersatNovacopyCompanyproduceda3Dprintedmodelthatwouldbeusedtocreateaprosthetic(修复的)footfortheduck.ConsideringthatABSplasticswerenotflexibleenoughforthistypeofexercise,theNovacopycompanymadeathree-dimensionallymodeledfootmadeofsilicone,withthehopetocreateapermanentprosthesis(假肢)fortheduck.Ittookjust13hourstoproduce.This3Dprosthesisdemonstratedthe3Dtechnologiescanbeusednotonlyforhumanapplication,butalsoinforeignsubjectssuchasanimalsandothermedicaltreatments.A.Inacollegebiologylab.B.Inabackyard.C.InNoacopyCompany.A.Itdidn’tsurvived.B.Itwasbornwithabackwardleftfoot.C.MikeGarycutoffthatbadfoot.A.No,becauseABSplasticswerenotflexibleenough.B.Yes,butitcouldonlybeproducedbyNovacopyCompany.C.Yes,becauseitwasmadeofsilicone.A.10hours.B.13hours.C.30hours.A.3Dtechnologiescanbeusedonlyforhumanapplication.B.3Dtechnologiescanbeusedonlyforforeigners.C.3Dtechnologiescanbeusedtohuman,animalsandothermedicaltreatments.