医学微生物学试题及答案

))))))B．transformationtestC．fluctuationtestD．replicaplatingtestE．Widaltest))))))()))))(()(19．ThemaininfectionsourceofepidemictypeBencephalitisvirusis:)A.patientB.healthcarrierC.youngpigD.culicine（库蚊）20．ThemaintypeofinfectioncausedbyPoliovirusis：(A．inappareentinfectionB．acuteinfectionD．latentinfectionE．slowvirusinfection)C．chronicinfection21．Atanofficevisit,a38-year-oldmancomplainsofjaundice黄疸,darkurine,anorexia厌食,abdominalpain,andmalaise不适.SerologictestsarepositiveforbothHBeAgandHbsAg.Whichstatementmostaccuratelydescribesthevirusresponsibleforthesefindings?()A.ItsgenomeisamessengerRNA(mRNA)thatencodesapolyprotein.Itsgenomeislineardouble-strandedDNA.C.ItsgenomeisRNA,butitreplicatesthroughaDNAintermediate.D.Itsreplicationrequiresahelpervirus.E.ItsreplicationrequiresanRNA-dependentDNApolymerase.22.Whichstepinviralreplicationisinhibitedbyproteaseinhibitor?()A.PenetrationC.TranscriptionD.ReplicationE.Viralassembly23.A48-year-oldmanhasbeenreceivingbloodproductsforhemophilia血友病sincechildhood.Heisnowsufferingfromalow-gradefever,weightloss,thrush鹅口疮,seriousboutsofdiarrhea,andsymptomsofpneumonia.Adeficiencyintheproductionofwhichsubstancewouldbemostpronouncedinthispatient?()B.ImmunoglobulinG(IgG)C.Interferon-alpha(IFN-D.Interferon-gamma(IFN-1(IL-1)化,rash,inclusion()neonateisbornwithasmallhead,intracerebralcalcification脑内钙andswollenliverandspleen.Cellswithabasophilicnuclearbodyareobtainedfromthepatient'surine,whichconditionthemostprevalentconsequenenceofadultinfectionwiththisagent?A.ImmunosuppressionandsusceptibilitytoopportunisticdiseasesMildarthriticconditionwithafinelacyrashC.MononucleosiswithproductionofantibodytosheepredbloodcellsNoserious,definablediseasesymptomsE.Pharyngoconjunctivitis咽结膜炎25．Avirusisolatedfromapatientwithliverdiseaseisdetergent去污剂-sensitive,anditsgenomeisinfectious,Whichvirusdothesefindingsdescribe?()A.EchovirusB.HepatitisAvirusPapillomavirusC.HepatitisCvirusD.HepatitisEvirus))))2.highfrequencyrecombinant3.dysbacteriosis4.Daneparticle5.Weil-Felixreaction6.subacutesclerosin