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Thedecryptorofthewonderfulworld第1题Atomicradiusisusuallywithintherangeof()A1μmB10μmC1nmD0.1nm第2题C60belongsto()nanomaterialsAZero-dimensionalBOne-dimensionalCTwo-dimensionalDThree-dimensional第3题Quasi-one-dimensionalnanomaterialsrefertonewnanomaterialsthatarenanoscaleintwodimensionsandhavealengthofaboutthemicronormillimeterlevel.Amongthefollowingoptions,whichonesbelongtoquasi-one-dimensionalnanomaterials?()ANanoparticlesBnanostructuredfilmsCcarbonnanotubesDhydrogenstoragealloypowders第4题Thecontentofnanotechnologyresearchincludes().ANanoscalescienceBNanotechnologyCNanoscaleengineeringDAlloftheabove第5题Whichofthefollowingstatementsaboutnanomaterialsisincorrect?AThe"nano"in"nanomaterials"isaunitofmeasurementforlength.BNanomaterialshaveuniquepropertiesintermsoflight,electricity,magnetism,heat,mechanicsandchemistry.CMaterialscomposedofnanoscaleparticlesarecallednanomaterials.DThesilverpowdermadewithnanotechnologywillspontaneouslycombustintheair.第6题Theself-cleaningeffectoflotusleavesisduetothedielectricconfinementeffect.第7题Whenthesizeofnanometerparticlesisreducedtoacertainvalue,theycanemitlightundertheexcitationoflightwithacertainwavelength.第1题Whichofthefollowingscientistsisnotrelatedtotheconceptandtheoreticaldevelopmentofentropy?AClausiusBBoltzmannCShannonDNewton第2题Whichofthefollowingstatementsaboutentropyiscorrect?AEntropyisaquantitativemeasureofdisorder.BGenerallyspeaking,thechaoticstateiscalled"lowentropy".CGenerallyspeaking,thestateofregulararrangementiscalled"lowentropy".DThemoreorderlyasystemis,thehigheritsentropywillbe.第3题Regardingthepropertiesofentropy,whichofthefollowingstatementsisincorrect?ATheentropychangeoftheenvironmentisrelatedtotheprocess.BCertainspontaneousprocessescancreateentropyforthesystem.CTheentropychangeisequaltotheheat-temperaturequotientoftheprocess.DTheentropyofasystemisequaltothesumoftheentropiesofallpartswithinthesystem.第4题Underadiabaticconditions,thepistonisrapidlypushedwithapressuregreaterthanthatinsidethecylindertocompressthegas.Whatistheentropychangeinthisprocess?AGreaterthanzeroBLessthanzeroCEqualtozeroDCannotbedetermined第5题Whenasystemundergoesaspontaneousprocess,theentropyalwaysincreases.第6题Entropyhasafunctionalrelationshipwiththermodynamicprobability.UnitWork-03第1题Regardingbioluminescence,thecorrectstatementisAItcanonlyexistinterrestrialanimals.BItcanonlyexistinaquaticanimals.CTheluminescenceprocessisessentiallyachemicalprocess.DThemechanismofluminescencestillcannotbeexplained.第2题Whichofthefollowingisnotincludedamongtheluminescentorganismsdiscoveredinnaturesofar?AInsectsBFungiCBacteriaDViruses第3题Theessenceofbioluminescencegenerationis:AThecatalyticeffectofgeneticmaterial.BThecatalyticeffectofpolysaccharides.CThecatalyticeffectofluciferase.DStructuralchangesinphotoreceptorcells.第4题Essentially,thedifferenceinthewavelengthoflightproducedbydifferentluminescentorganismsisdeterminedbywhichofthefollowingfactors?AThelivingenvironmentoforganisms.BThecompetitiverelationshipamongorganisms.CThetypesofluciferaseandsubstrates.DThecellularstructureoforganisms.第5题Whichofthefollowingfactorsessentiallydeterminesthewavelengthdifferenceoflightproducedbydifferentbioluminescentorganisms?AThelivingenvironmentoftheorganism;BThecompetitiverelationshipbetweenorganisms;CThetypesofluciferaseandsubstrate;DThecellstructureoftheorganism;第6题Bioluminescenceandchemiluminescencephenomenaareessentiallyprocessesofconvertingchemicalenergyintolightenergy.第7题Theluminescenceoffirefliesisaccomplishedbythemicroorganismsparasiticintheirbodies.第8题Theluminescenceofdeep-seaanglerfishisaccomplishedbythemicroorganismsparasiticintheirbodies.UnitWork-04第1题ThediseasethatHawkingwasdiagnosedwithattheageof21is:AAmyotrophiclateralsclerosisBParkinson'ssyndromeCPancreaticcancerDRed-greencolorblindness第2题In1978,Hawkingwonthehighestawardintheworldofphysics:ATheNobelPrizeBThePulitzerPrizeCTheEinsteinMedalDThePritzkerPrize第3题WhichofthefollowingoptionsisnotHawking'sworkcontribution?AHeputforwardthe"SingularityTheorem"togetherwiththeBritishmathematicianPenrose.BTheelectromagneticwavetheoryCThe"No-boundaryuniversemodel"DThe"Hawkingradiation"theory(i.e.,theblackholeradiationtheory)第4题WhendidHawkingpassaway?AMarch14,2017BMarch14,2018CMarch14,2019DMarch14,2015第5题InwhichyearwastheHawkingradiationtheory(i.e.,theblackholeradiationtheory)putforward?A1973B1984C1972D1980第6题HawkingwasborninOxford,EnglandbeforethestartoftheSecondWorldWar.第7题Hawkingputforwardthe"boundlessuniversemodel"theory.UnitWork-05第1题Whatisthecounterpartoftheconceptof"organicfood"?AInorganicfoodBConventionalfoodCHealth-carefoodDGreenfood第2题Whichofthefollowingtechniquescanbeusedintheproductionprocessoforganicfood?AGrowthhormoneBGenetically-modifiedtechnologyCChemicalpesticidesDOrganicfertilizers第3题Duringtheproductionofgreenfood,whichtechniqueisnotrestrictedinuse?APesticidesBChemicalfertilizersCGrowthhormonesDGeneticmodification第4题"Organicfood"isessentiallyakindof:ASafetystandardBProductionstandardCHealthstandardDAlloftheabove第5题Pollution-freefoodmayhaveunrestricteduseofgrowthhormones.第6题Thecertificationstandardsforgreenfoodaremorestringentthanthoseforpollution-freefood.第7题Organicfoodshavelesschemicalresiduethanordinaryfoods.第8题Organicfoodissaferthanordinaryfood.第9题Organicfoodismorenutritiousthanordinaryfood.第10题Thereisnopesticideresidueinorganicfood.UnitWork-06第1题ThelegendofShennongTastingHundredHerbsreflectstheexplorationofancientChinesepeopleinwhichfield?AAgricultureBMedicineCAstronomyDGeography第2题Accordingtothelegend,whatitemdidShennongusetodetoxify?ATealeavesBGanodermalucidumCGinsengDWolfberry第3题InwhichancientbookwasthestoryofShennongTastingHundredHerbsfirstrecorded?AClassicofMountainsandSeasBHuainanziCRecordsoftheGrandHistorianDCompendiumofMateriaMedica第4题FromShennongTastingHundredHerbs,itcanbeinferredthatatthattime,people'sunderstandingofplantswasatwhatstage?AOnlyknewtheappearanceofplantsBBegantounderstandtheediblevalueofplantsCInitiallyexploredthemedicinalfunctionsofplantsDHadalreadymasteredcomprehensiveknowledgeofplants第5题DuringtheprocessofShennongTastingHundredHerbs,hemusthavetriedthemonebyoneaccordingtotheplantfamilyandgenusclassificationsystem.第6题Shennongnotonlytastedhundredsofherbstopioneermedicine,butwasalsorespectedasthegodofagriculture.HetaughtpeopletoplantgrainsandusefarmtoolsandmadeindeliblecontributionstothedevelopmentofancientChineseagriculture.第7题WhichofthefollowingmightbethedifficultiesShennongfacedwhentastinghundredsofherbs?AItwasdifficulttomeasurethetoxicityofplants.BTherewasalackofscientificmethodstojudgethemedicinalproperties.CThewildenvironmentwasdangerous.DThetransportationwasinconvenientanditwasdifficulttocollectplantsfromafar.第8题WhatqualitiesdidtheancientChineseancestorsreflectedbyShennongTastingHundredHerbshave?APerseveranceBCouragetopracticeCReverencefornatureDTeamwork第9题WhatimpactsdidthelegendofShennongTastingHundredHerbshaveonlatergenerations?ALaidthebasicpatternofancientChineseagricultureBTriggeredpeople'scontinuousexplorationofthemedicinalvalueofplantsCProvidedrichmaterialsforliterarycreationDPromotedtheformationoftraditionalChinesemedicinetheoryUnitWork-07第1题WhatcoloroffluorescenceisproducedbyaflatoxinGgroupunderultravioletlight?AGreenBBlueCYellowDRed第2题Whichofthefollowingmethodscandecomposeaflatoxin?ABoilinginhotwaterBTreatmentwithhydrochloricacidCDisinfectant84DAlloftheabove第3题Thecarcinogenicityofaflatoxinishowmanytimesthatofthestrongcarcinogenbenzo(a)pyrene:A68timesB2000timesC4000timesD5000times第4题In1960,100,000turkeysintheUKdiedbecauseofeatingwhatkindoffeed?ACornBPeanutsCAmixtureofcornandpeanutsDWheat第5题WhichofthefollowingfoodsdoesaflatoxinMmainlyexistin?ANutsBPeanutoilCCornDMilk第6题InChina'snationalstandards,themaximumallowableamountofaflatoxinininfantdairyproductsis0渭g/kg第7题Aflatoxinismoresuitablyproducedatarelativehumidityof70-80%.UnitWork-08第1题Whichofthefollowingstatementsaboutgenesisincorrect?AGenesdeterminethetraitsoforganisms.BGenescancodeforaminoacids.CGenesareDNAfragments.DSomecellsinanorganismdonotcontaingenes.第2题Whatwastheearliestoriginofmulti-coloredcorn?AArtificialhybridizationBNaturalhybridizationCGenetically-modifiedtechnologyDRadiation-inducedmutation第3题Artificialhybridizationcannotsolvealltheproblemsofgeneticmodificationbecause:AArtificialhybridizationistime-consuming.BArtificialhybridizationishighlyrandom.CThereisreproductiveisolationbetweenspecies.DAlloftheabove.第4题Thereasonwhyinsect-resistantcornisinsect-resistantisthat:AItcanproducepest-repellingodors.BItcanproduceinsecticidalproteins.CItcanattractnaturalenemiesofpests.DItcanproducepest-relatedbacteria.第5题Whichcountryhasthelargestareaofgenetically-modifiedcropsplantedintheworld?AChinaBRussiaCTheUnitedStatesDBrazil第6题Thecommercializationofgenetically-modifiedcropsfirstoccurredin:A1990B1996C1998D2000第7题Genetically-modifiedsalmonistheworld'sfirstcommerciallyavailablegenetically-modifiedanimal.第8题BTinsecticidalproteinscannotbedigestedbyhumangastricjuice.第9题Cellulosedoesnotbelongtosugars.第10题ThecaloriecontentofCokeZeroiszero.UnitWork-09第1题ThecomponentofbrineusedformakingtofuisAMagnesiumchlorideBSodiumchlorideCCitricacidDBenzoicacid第2题Whichofthefollowingbelongstofoodadditives?AMelamineBClenbuterolCSudanRedDMonosodiumglutamate第3题Theanti-cakingagentintablesaltisalegalfoodadditive,anditscomponentsare:APotassiumferrocyanideBMagnesiumchlorideCPotassiumiodateDAlloftheabove第4题Atpresent,thereareapproximatelyhowmanyfoodadditivesthatcanbelegallyusedinChina?AMorethan500kindsBMorethan1,000kindsCMorethan2,000kindsDMorethan4,000kinds第5题Whichofthefollowingpracticesiswrong?AAddantioxidantstoedibleoilBAddpreservativestosoysauceCFumigategingerwithsulfurDAddpigmentstobiscuits第6题Foodadditivesareallartificiallysynthesized.第7题Thefunctionofantioxidantsinedibleoilistoinhibitthereproductionofmicroorganismsintheoil.第8题InChina,theproportionoffoodusingfoodadditivesisapproximately90%.UnitWork-10第1题Inthehumanbody,geneticmaterialis______.ARNABDNACProteinDAlloftheaboveoptionsarepossible.第2题Inorganisms,thegenomicDNAisgenerallycomposedofwhichofthefollowingfourbases?AAdenine;Guanine;Cytosine;ThymineBAdenine;Hypoxanthine;Cytosine;ThymineCAdenine;Hypoxanthine;Uracil;ThymineDAdenine;Guanine;Uracil;Thymine第3题InwhatformdoesDNAexistinthehumangenome?ATriplehelixformBSingle-strandedformCDouble-strandedformDAlloftheaboveoptionsarepossible.第4题Whichofthefollowingstatementsaboutbasepairingiscorrect?AAdeninepairswithcytosine.BAdeninepairswithguanine.CCytosinepairswithguanine.DUracilpairswithcytosine.第5题ThecorrectformulaforcalculatingthepossiblearrangementsofbasepairsinDNAis_____.(nrepresentsthenumberofbasepairs.)An4B4nCn2D2n第6题ThecharacteristicsthatDNApossessesasforensicevidenceincludeAExclusivityBTraceabilityCAccessibilityDUncertaintyUnitWork-11第1题Accordingtothedivisionofdimensions,whichdimensiondoesthequantumdotbelongto?AOnedimensionBTwodimensionsCThreedimensionsDQuasi-zerodimension第2题Whichofthefollowingphysicaleffectsisnotacharacteristicofquantumdots:AQuantumconfinementeffectBMacroscopicquantumtunnelingeffectCQuantumsizeeffectDWave-particledualityeffect第3题Thecommonapplicationsofquantumdotsdonotinclude:ABioimagingBDrugsynthesisCFluorescencelabelingDDrugdelivery第4题Theconventionalchemicalelementcompositionofquantumdotsdoesnotinclude:ATypeII-VIBTypeI-III-VICTypeIII-VDTypeVII-VII第5题Theparticlesizeofquantumdotsisgenerally:A2-20nmBAbove100nmCAround1mmDLessthan1nm第6题Thecommonsynthesismethodofquantumdotsisbiosynthesis.UnitWork-12第1题Theperoxidegroupcontainedintheartemisininmoleculeisthekeystructureforitsantimalarialactivity.Whichofthefollowingdescriptionsofthechemicalpropertiesoftheperoxidegroupiscorrect?AIthasstrongoxidizingpropertiesandeasilyreactswithreducingsubstancesintheplasmodium.BIthasstrongreducingpropertiesandcanreducethemetabolicproductsoftheplasmodium.CItisstableinnature,doesnotparticipateinchemicalreactions,andonlyservesasastructuralsupport.DItcandecomposespontaneouslyandreleasealargeamountofenergytodamageplasmodiumcells.第2题Theuniqueperoxidebridgestructureofartemisininiscrucialforitsantimalarialactivity,andthebreakageoftheperoxidebridgewillleadtothelossofactivity.Whichofthefollowingfactorsisleastlikelytocausethebreakageoftheperoxidebridge?AStronglyacidicenvironment(pH<2)BProlongedillumination(ultravioletirradiationformorethan24hours)CMildheating(40°C-60°C)DCoexistencewithstronglyoxidizingsubstances第3题Duringthedevelopmentofartemisinin-baseddrugsbyTuYouyou'steam,inordertosolvetheproblemofpoorwatersolubilityofartemisinin,avarietyofchemicalmodificationmethodswereadopted.Whichofthefollowingmodificationgroupsismostlikelytosignificantlyimproveitswatersolubility?AMethyl(-CH₃)BCarboxyl(-COOH)CPhenyl(-C₆H₅)DAcetyl(-COCH₃)第4题Duringtheinvivometabolismofartemisinin,someactivemetaboliteswillbeproduced.Whichofthefollowingmetabolitesmayhavethestrongestinhibitoryeffectonplasmodium?ADeoxyartemisininBDihydroartemisininCArtesunatemetaboliteDArtemethermetabolite第5题Intermsoftheantimalarialmechanismofartemisinin,whichofthefollowingtargetsorpathwaysareinvolved?AInhibitingtheendoplasmicreticulumstressresponseofplasmodiumBInterferingwiththeinitiationprocessofproteinsynthesisinplasmodiumCBlockingtheionchannelsonthecellmembraneofplasmodiumDDestroyingthemitochondrialelectrontransportchainofplasmodium第6题Regardingthestructure-activityrelationshipofartemisinin-basedcompounds,thefollowingarecorrectATheexistenceoftheperoxidegroupisanecessaryconditionforitsantimalarialactivity.BThestereochemicalconfigurationwithinthemoleculehasasignificantimpactontheactivity.CThemodificationofperipheralgroupscanchangeitsphysicalandchemicalpropertiessuchassolubilityandstability,andthenaffectthedrugefficacy.DIncreasingthenumberofringsinthecarbonskeletonusuallyimprovestheantimalarialactivity.第7题RegardingthestatementthatartemisininwontheNobelPrizeinChemistry,thefollowingarecorrect:AArtemisininitselfisanaturalproductextractedfromplants.TheinnovationofitsextractionprocessandsubsequentresearchonchemicalstructureandotheraspectsofachievementsarevaluedbytheNobelPrizeCommitteeinChemistry.BAlthoughtheawardcategoryisthePrizeinPhysiologyorMedicine,thediscoveryofartemisinininvolvesalotofworkinthechemicalfieldsuchaschemicalsynthesis,structuralanalysis,andactivityresearch,andiscloselyrelatedtochemistry.CTheNobelPrizeinChemistrysometimesrecognizesachievementswithinterdisciplinarynature.Theresearchonartemisinincoversinterdisciplinarycontentsuchaschemistry,biology,andmedicine,whichconformstotheawardscope.DIfartemisininwontheNobelPrizeinChemistry,itwouldbeamoreaccuraterecognitionofitschemicalessenceanditspromotingroleinthechemicalfield,withdifferentemphasescomparedtothePrizeinPhysiologyorMedicine.第8题Aslongasacompoundcontainsaperoxidegroupinitschemicalstructure,itmusthaveantimalarialactivitysimilartothatofartemisinin.UnitWork-13第1题Themainmechanismofactionofpenicillinistoinhibitthesynthesisofbacterialcellwalls.Atwhichstagedoesitact?APreventthesynthesisofN-acetylglucosamineandN-acetylmuramicacidBInterferewiththecross-linkingofpeptidechainsduringpeptidoglycansynthesisCInhibittheactivityoftransportproteinsrequiredforcellwallsynthesisDBlocktheentryofprecursorsubstancesforcellwallsynthesisintothecell第2题PenicillinGisunstableinanacidicenvironmentandispronetowhichofthefollowingchanges?AHydrolysistoproducepenicilloicacidBOxidationtoproducepenilloaldehydeCIsomerizationtoproduceanineffectiveisomerDPolymerizationtoproduceahigh-molecularpolymer第3题Toexpandtheantibacterialspectrumofpenicillin,itschemicalstructureisoftenmodified.Whichofthefollowingmodificationsofsemi-syntheticpenicillinshasgoodantibacterialactivityagainstGram-negativebacteria?AIntroductionofanelectron-withdrawinggrouponthe6-amidegroupBIntroductionofanelectron-donatinggrouponthe6-amidegroupCIntroductionofalargehydrophobicgrouponthesidechainDIntroductionofapolargrouponthesidechain第4题Thechemicalstructureofnaturalpenicillinisverystableandcanmaintainitsantibacterialactivityundervariousenvironmentalconditions.第5题Semi-syntheticpenicillinsarebrandnewcompoundspreparedbytotalsynthesismethodsandhavenothingtodowithnaturalpenicillins.第6题ThefollowingbelongtotheantibacterialcharacteristicsofpenicillinAIthasastrongeffectonbacteriainthereproductivestage.BIthasaweakeffectonbacteriainthestationarystage.CIthasabactericidaleffectratherthanabacteriostaticeffect.DIthaslowcytotoxicitytohumancells.第7题Duringtheclinicaluseofpenicillin,whichofthefollowingadversereactionsmayoccur?AAllergicreactionsBHerxheimerreactionCLocalirritationsymptomsDSuperinfection第8题Regardingtheresearchanddevelopmenthistoryofpenicillin,thefollowingarecorrectAAftertheinitialdiscoveryofpenicillin,duetodifficultextractiontechniques,theyieldwasextremelylow.BWiththedevelopmentoffermentationtechnology,theyieldofpenicillingraduallyincreased.CTheemergenceofsemi-syntheticpenicillinsfurtherexpandeditsapplicationrange.DNewpenicillinderivativesareconstantlybeingdevelopedtoaddresstheproblemofbacterialresistance.UnitWork-14第1题Regardingtheformationandcharacteristicsofsoil,whichofthefollowingstatementsiscorrect?ASoilismerelyacollectionofmineralsformedbytheshort-termweatheringoftheparentmaterialontheEarth'ssurface.BSoilisaloosemixtureofmineralsandorganicmatterthatisformedunderthelong-termcomprehensiveactionofmultiplefactorssuchasorganisms,climate,parentmaterial,topography,andtime.Ithasspecificecologicalfunctionsandisinastateofdynamicchange,capableofsupportingplantgrowth.CSoilisastaticsubstance,anditscompositionandpropertieswillnotchangeduetoexternalfactors.DSoilismainlycomposedofasingletypeoforganicmatter,withaverylowmineralcontent.第2题Whichofthefollowingunderstandingsofsoilpollutantsisaccurate?AAllforeignsubstancesinthesoilaresoilpollutants.BOnlythosesubstancesthatexistinlargequantitiesinthesoilandimmediatelycauseseriousharmtohumanhealtharesoilpollutants.CSubstancesthatareintroducedintothesoilenvironment,affectthenormalfunctionofthesoil,reducecropyieldsandbiologicalquality,andareharmfultohumanhealth.Theseincludevarioustypessuchasinorganicpollutants,organicpollutants,biologicalcontamination,solidwaste,andradioactivecontamination.DSoilpollutantsonlyincludechemicalsubstancesthatdamagesoilfertility.第3题Regardingsoilpollutionremediationtechnologies,whichofthefollowingstatementsiscorrect?ASoilpollutionremediationtechnologiesonlyrefertothemethodsofconvertingsoilpollutantsintonon-toxicsubstancesthroughchemicalmeans.BItisacomprehensivetechnologythatadoptsavarietyoftechniquesandmethodssuchaschemical,physical,andbiologicalones.Theaimistoreducetheconcentrationofpollutantsinthesoil,fixpollutants,convertpollutantsintolesstoxicornon-toxicsubstances,andblockthetransferpathwaysofpollutantsintheecosystem.CSoilpollutionremediationtechnologiesonlyfocusontheremovalofpollutantsonthesoilsurfaceandarepowerlessagainstdeep-soilpollution.DThistechnologywillnothaveanyimpactontheoriginalecologicalenvironmentofthesoilduringtheremediationprocess.第4题Theuniqueabilityofhyperaccumulatorplantsis()ATheycangrowandreproducerapidlyinanyharshenvironment.BComparedwithordinaryplants,theycanabsorbandaccumulatespecificheavymetalsatahigherefficiency,andevenreachanexcessivelevel.CTheycanconvertallpollutantsinthesoilintosubstancesbeneficialtotheirowngrowth.DTheyhaveanextremelystrongcompetitiveabilityfornutrientsinthesoilandotherplantsfromgrowing.第5题Inthesoilwashingtechnology,theroleofthewashingagentismerelytomoistenthesoilandincreasethegapsbetweensoilparticles.()第6题Theprocessofphytoremediationreferstotheprocessinwhichplantsconvertpollutantsinthesoilintoorganicsubstancesrequiredfortheirowngrowththroughphotosynthesis.()UnitWork-15第1题Howmanycategoriescangarbagebedividedinto?ATwocategories.BThreecategories.CFourcategories.DFivecategories.第2题Whichtypeofgarbageshouldlargebonesandoystershellsbeclassifiedinto?AWetgarbage.BRecyclablegarbage.CHazardouswaste.DDrygarbage.第3题Whenbuyingbatteries,choosingthefollowing()isrelativelymoreenvironmentally-friendly.ACheapordinarybatteriesBHigh-qualitymercury-freealkalinebatteriesCReusablemercury-freerechargeablebatteriesDAlkalinezinc-manganesedrybatteries第4题Inwhichtypeofgarbagebinshouldthecontaminatedpackagingbagsbeplaced?()AWetgarbageBRecyclablegarbageCHazardouswasteDDrygarbage第5题Thediscardededibleoilcanberecycledtoproducebiodiesel,soitbelongstorecyclables.第6题Expiredmedicinescanbeputintotherecyclablewastebin.UnitWork-16第1题Whatisthefullnameof"China'sSkyEye"?AFive-hundred-meterApertureSphericalRadioTelescopeBThree-hundred-meterApertureSphericalRadioTelescopeCFive-hundred-meterApertureCurvedSurfaceRadioTelescopeDThree-hundred-meterApertureCurvedSurfaceRadioTelescope第2题Whatarethethreemajorcharacteristicsof"China'sSkyEye"?ALarge,brightandfar-reaching.BThick,heavyandprecise.CLarge,flexibleandprecise.DHeavy,brightandfar-reaching.第3题Howlargeisthetotalareaofthereflectingsurfaceof"China'sSkyEye"?AThesizeof100footballfields.BThesizeof50footballfields.CThesizeof30footballfields.DThesizeof10footballfields.第4题Howfarawaycanthesignalsbeobservedby"China'sSkyEye"?A13.5billionlight-yearsB13.7billionlight-yearsC14billionlight-yearsD14.5billionlight-years第5题Whatisthefunctionofthefeedcabin?AToreceivereflectedsignalsBTotransmitreflectedsignalsCToreceiverefractedsignalsDTotransmitrefractedsignals第6题Howheavyisthefeedcabin?A150tonsB50tonsC30tonsD10tons第7题Howmanysupporttowersaretherearound"China'sSkyEye"?A18B12C10D6第8题Withinwhatsizerangeistheapproximatecontrolofthefeedcabincarriedoutbythesupporttowers?AAtanaltitudeof140metersandwithinasizerangeofmorethan200metersBAtanaltitudeof140metersandwithinasizerangeofmorethan100metersCAtanaltitudeof140metersandwithinasizerangeofmorethan300metersDAtanaltitudeof140metersandwithinasizerangeofmorethan500meters第9题Howmanypulsarshas"China'sSkyEye"discoveredinjusttwoyearssinceitscompletion?A59B58C57D56第10题Whatarethemainscientificgoalsof"China'sSkyEye"?APulsarscienceBTostudythedistributionofdiffuseatomichydrogengasintheMilkyWayCTostudyinterstellarmoleculesandtheinterstellar"laser"(maser)emittedbyhydroxyl(OH)DTodiscovermoreunknowngalaxies第11题"China'sSkyEye"hasachievedthreecompletelyindependentinnovations.Whataretheyrespectively?ABreakingthroughthe100-meterlimitforbuildingtelescopesonflatgroundBUsinganactivelydeformablereflectingsurfaceCIndependentlydevelopingalightcable-drivenparallelrobotDUsinganewtypeofcoating第12题Thereflectingsurfaceofthe"Five-hundred-meterApertureSphericalTelescope(FAST)"isequivalenttothehumaneyeball.第13题Pulsarscanserveasanultra-highprecisionclockforhumanstomeasurethespace-timeoftheuniverse,equivalenttotheGPSoftheuniverse.第14题FASThasdetecteddozensofhigh-qualitypulsarcandidates,and9newpulsarshavebeeninternationallycertified.第15题The"Five-hundred-meterApertureSphericalTelescope(FAST)"pullsthedownhaulcablesandadjuststhereflectingsurfaceaccordingtotheazimuthofcelestialbodies,thusformingamovable500-meterobservationplatform.UnitWork-17第1题Whenthelaseremittedbythelaseremitterfallsonanobstacle,itcauses().AScatteringBRefractionCReflectionDPhotocatalysis第2题Bycalculatingwhatdoesthereceivercalculatethedistancesofcountlesspointsanddeterminetheoutlineanddistanceoftheobstacle?ALightwaveintensityBAngleoflightrefractionCAngleoflightreflectionDTimeoflightmovement第3题Whichpartisthedifficultyindriverlessdriving?ALaseremitterBReceiverCCameraDSensor第4题AccordingtotheautonomousdrivingclassificationoftheNationalHighwayTrafficSafetyAdministrationoftheUnitedStates,thedrivinglevelscanbedividedinto().ALevel0toLevel4BLevel1toL
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