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英语六级考前辅导试题2017年英语六级考前辅导精选试题贵有恒何必三更眠五更起，最无益只怕一日曝十日寒。以下是小编为大家搜索整理的2017年英语六级考前辅导精选试题，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!Questions56to60arebasedonthefollowingpassage.3Dglasseshelpdoctorsperforminvasivesurgerywhentheirhandsareobscuredfromview.Moviegoersaren'ttheonlyoneswearing3Dglassesnowadays—doctorscouldbenefitfromthem,too,anewstudysuggests.Inthepast,doctorshavebeenskepticalofusing3Dtechnologyintheirwork,preferringtorelyontheirownexperience.Butthatmaychange,thankstoimproved3Dglassesandevenglasses-freesystems.Fundedbyindustrysponsors,thestudyof50surgeonsusingthenewtechnologyshowedimprovementsinsurgicalprecisionandspeed."Whilethetechnologystillrequiressomefree-tuning,technologywithouttheneedtowearspecialglasseswillincreasethepopularityof3Dsystemsinoperatingrooms,"studyleaderUlrichLeineroftheFratmhoferHeinrichHertzInstitute(HHI)inBerlinsaidinastatement.Improvementstoscreensaredrivingdevelopmentsin3Dtechnology.High-definitionscreensarealreadyavailable.Thenextstepisultra-highdefinition,withasixteenfoldimprovementinresolution,accordingtostudyco-authorMichaelWitteofHHI.Toevaluatewhethernew3Dtechnologywasreadyforhospitalapplications,researchersinvitedsurgeonsfromtheKlinikumrechtsderIsar'ssurgicalhospitaltotestitout.Aleadingendoscopemanufacturerandaninternationaldisplaycompanyfundedthestudy.Thesurgeonstestedfourdifferentsystems:2D,3Dwithglasses,3Dwithoutglassesandamirror-based3Dsystem.Theglasses-freemodelreliedonaneye-trackingcamerasystemthatdeliveredseparateimagestoeacheye,creatinga3Deffectinthebrain.Theimagescamefromendoscopiccamerasusedinsurgery.Thedoctorspracticedasimulated,routinesurgicalprocedureinwhichtheysewedupawoundinamodelpatient'sstomachusinganeedleandthread.Justasinaminimallyinvasivesurgery,theirhandswereobscuredfromviewandtheyreliedonthescreentoseewhattheyweredoing."Theresultswereastonishing,"HubertusFeuner,oftheKlinikumrechtsderIsaruniversityhospitalinMunich,saidinastatement.Thewinningsurgeonperformedtheprocedurei
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