A. the nucleus of a cellB. cloned human beingsC. a human being in two yearsD. a law to ban human clo...

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对于nParticles粒子和nCloth布料系统的解算节点nucleus节点说法错误的是

此解算器可以同时解算nParticles粒子和nCloth布料，并让它们发生碰撞等反应同一场景中只能拥有一个nucleus节点可以在场景中直接创建nucleus节点场景中可以存在不拥有任何nParticles粒子和nCloth布料的Nucleus解算器

hypoglossalnucleus

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SonicDevice TheotherdayDr.RobertSmithwhoisblindtookaremarkablestrollthroughthecampusoftheUniversityofCaliforniaatSantaBarbara.AsDr.Smithwalkedalongthecampusplacesandimpediments障碍物inhispathseemedtocallouttheirnamestohim--"libraryherelibraryhere""benchherebenchhere". Dr.Smithwastestingaprototype样机navigationsystemfortheblindthatanouncedthesurroundingobjectsthroughstereoheadphonesthatweremountedtoacomputerinhisback-packcreatingavirtualrealitylandscape仿真影像.Theinformationcamenotfromsomeminiatureradarbutfromthesignalsbroadcastbythemilitary’snetworkofgloalpositioningsatellites全球定位卫星.Onedayitsdevelopershopeminiaturized小型化的versionsofthisnavigationdeviceswhichnowweighstwenty-eightpoundswillhelptheblindnavigateunfamiliarneighborhoods. "Withthissystemyoudonotneedtoknowathinginadvanceaboutwhereyouaregoing"saidDr.RobertaKlatzkyapsychologistatCarnegie-MellonUniversitywhoisworkingwithDr.Smithtodevelopthenavigatingdevice.Dr.MichaelOberdoroftheNationalEyeInstitutesaid"Ablindpersoncouldwalkclownthestreetandknownotjusthewasat80thandBroadwaybutwhatstoresarearoundandthatZabar’sdelicatessen熟食店wasupahead.Thisnavigationsystemtellsyounotjustwherethereareobstaclesbutyouroveralllocationgeographically."Itletsblindusersconstructamentalmapofnewsurroundingsandlearntheirwayaround. Thenavigationsystemusessignalsfromacomputerizedmaptocreatea"virtualacousticdisplay仿真声音显示.Thisisatalkingmapinwhichlargeobjectsseemtoannouncethemselvesintheheadphoneswiththeprecisetimingandloudnessthatwouldbethecaseiftheobjectswereactuallymakingasound.Thisallowstheblindpersontosenseimmediatelyhisorherdistanceordirectionandusethatinformationforguidance.Whilenooneknowswhetheritisbecauseblindpeopletendtodevelopasharpersenseofhearingthosewhohavetriedthesystemsaythattheyquicklyadapttolocatinganobjectthroughthesounds."Oneofthecrucialfeaturesofthissystemisthatittakesadvantageofsensorypaychophysics感官心理物理学--howthebraininterpretssignalsfromoutsidetomakeamapofyoursurroundingssoyoucannavigate"Dr.Oberdorsaid. AccordingtoDr.Oberdorthisdevicecanleadtheblindpeopletotheexactplacehe/shewantstogo.
Volcanicfireandglacialicearenaturalenemies.Eruptionsatglaciatedvolcanoestypicallydestroyicefieldsastheydidin1980when70percentofMountSaintHelensicecoverwasdemolished.Duringlongdormantintervalsglaciersgaintheupperhandcuttingdeeplyintovolcanicconesandeventuallyreducingthemtorubble.OnlyrarelydothesecompetingforcesofheatandcoldoperateinperfectbalancetocreatephenomenonsuchasthesteamcavesatMountRainierPark. LocatedinsideRainier’stwoice-filledsummitcratersthesecavesformalabyrinthoftunnelsandvaultedchambersaboutoneandone-halfmilesintotallength.Theircreationdependsonanunusualcombinationoffactorsthatnaturealmostneverbringstogetherinoneplace.Thecave-makingrecipecallsforasteadyemissionofvolcanicgasandheataheavyannualsnowfallatanelevationhighenoughtokeepitfrommeltingduringthesummerandabowl-shapedcratertoholdthesnow. SnowaccumulatingyearlyinRainier’ssummitcratersiscompactedandcompressedintoadenseformoficecalledfirnasubstancemidwaybetweenordinaryiceandthedensercrystallineicethatmakesupglaciers.Heatrisingfromnumerousopeningscalledfumarolesalongtheinnercraterwallsmeltsoutchambersbetweentherockywallsandtheoverlyingicepack.CirculatingcurrentsofwarmairthenmeltadditionalopeninginthefirniceeventuallyconnectingtheindividualchambersandinthelargerofRainier’stwocratersformingacontinuouspassagewaythatextendstwo-thirdsofthewayaroundthecrater’sinterior. TomaintainthecavesystemtheelementsoffireundericemustremaininequilibriumEnoughsnowmustfillthecratereachyeartoreplacethatmeltedfrombelow.Iftoomuchvolcanicheatisdischargedthecrater’sicepackwillmeltawayentirelyandthecaveswillvanishalongwiththesnowsofyesteryear.Iftoolittleheatisproducedtheicereplenishedannuallybywintersnowstormswillexpandpushingagainsttheenclosingcraterwailsandsmotheringthepresentcavernsinsolidfirnice. ThewordlabyrinthinParagraph2;Sentence1isclosestinmeaningto
ChickenSoupfortheSoul:ComfortFoodFightsLoneliness Mashedpotatoesmacaroniandcheesemaybebad51yourarteriesbutaccordingtoastudyinPsychologicalSciencethey’regoodforyourheartandemotionsThestudyfocuseson"comfortfood"and52itmakespeoplefeel. "Formepersonallyfoodhasalways53abigroleinmyfamily"saysJordanTroisiagraduatestudentattheUniversityofBuffaloandleadauthoronthestudy.Thestudycameoutoftheresearchprogramofhisco-authorShiraGabriel.Ithaslookedatnon-humanthings54mayaffecthumanemotions.Somepeoplereduceloneliness55bondingwiththeirfavoriteTVshow56virtualrelationshipswithapopsongsingerorlookingatpicturesoflovedones.TroisiandGabrielwonderedifcomfortfoodcouldhavethesameeffectbymakingpeoplethinkoftheirnearestanddearest. Inoneexperiment57makeparticipantsfeellonelytheresearchershadthemwriteforsixminutesaboutafightwith58closetothem.Othersweregivenanemotionallyneutralwritingassignment.Thensomepeopleineachgroupwroteabouttheexperienceofeatingacomfortfoodandotherswroteabouteatinganewfood.59theresearchershadparticipantscompletequestionsabouttheirlevelsofloneliness. Writingaboutafightwithaclosepersonmadepeoplefeel60.Butpeoplewhoweregenerallysecureintheirrelationshipswouldfeellesslonelybywritingaboutacomfortfood."Wehavefoundthatcomfortfoodsare61associatedwiththoseclosetous"saysTroisi."Thinkingaboutorconsumingthesefoodslaterthenservesasareminderofthosecloseothers."Intheiressays62comfortfoodmanypeoplewroteabouttheexperienceofeatingfoodwithfamilyandfriends. Inanotherexperimenteatingchickensoupinthelabmadepeoplethinkmoreaboutrelationshipsbut63theyconsideredchickensouptobeacomfortfood.Thiswasaquestiontheyhadbeenaskedlong64theexperimentalongwithmanyotherquestionssotheywouldn’trememberit. Throughouteveryone’sdailylivestheyexperiencestressoftenassociatedwithourconnectionswithothersTroisisays."Comfortfood65beaneasyremedyforloneliness./ 51
{{*HTML*}}A?willbeconstant??B?toabsorbinfraredradiation??C?isbecomingthepotentialproblem??D?prepareourselvestobechemistsphysicist??E?increasingcapacityoftheatmospheretoabsorbinfraredradiation??F?escapefromtheearthmuchmoreeasilyNowadaystoomuchcarbondioxide______.
{{*HTML*}}Robots??1.Themostsophisticated先进的JapaneserobotswhichhavevisionsystemsandworkatveryhighspeedsarestillbasedonAmericandesigns.StudiesofrobotsparticularlycomputercontrolsoftwareareconsideredtobegenerallylessadvancedinJapanthaninAmericaorEurope.??2.Althoughindustrialrobotswereoriginallydevelopedasdevicesforsimplyhandlingobjectstodaytheircommonestusesareformoreskilledworklikewelding焊接spray-paintingandassemblingcomponents.??3.InBritainrobotsalesappropriatelypeakedin1984buthavebeendecliningeversince.ThisispartlybecauseBritishwageratesaretoolowtomakerobotsfinanciallyattractiveandpartlybecauseengineersnowhavemoreexperiencewithrobotsandaremoreawareofthedifficultiesofintroducingthemeffectively.??4.Ithasbeencalculatedthatarobotusesonaverageabout100timesmoreenergythanahumantodoanequivalentjob.??5.Itisestimatedthat20%ofallcomicbookheroesinJapanarerobots.ThisisanenormousnumberbecausecomicsaresopopularthattheymakeupathirdofallmaterialpublishedinJapan.??6.ThereliabilityofrobotsismeasuredintheirM.T.B.F.ormeantimebetweenfailures.Thishasrisenfromabout250hoursinthemid-1970stoabout10000hourstodayequivalenttoworking18hoursadayfortwoyears.Onewayrobotmanufacturershaveincreasedreliabilityistotesteverysinglecomponenttheybuyinsteadofthenormalprocedureofjusttestingasmallsample.??7.ThebiggestsinglebenefitofintroducingrobotsclaimedbyJapanesecompaniesisthattheyincreasequalitycontrol.Onceprogrammedtherobotscanworkmoreaccuratelyandconsistentlythanhumanswhocangettiredandbored.??A.OngoingResearch??B.ExtensionofUse??C.RobotHeroes??D.GreaterReliability??E.FallingDemand??F.HiddenDangerhParagraph5______.

A. the nucleus of a cellB. cloned human beingsC. a human being in two yearsD. a law to ban human clo...

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