北京交通大學(xué)土木工程專業(yè)課程描述_第1頁
北京交通大學(xué)土木工程專業(yè)課程描述_第2頁
北京交通大學(xué)土木工程專業(yè)課程描述_第3頁
北京交通大學(xué)土木工程專業(yè)課程描述_第4頁
北京交通大學(xué)土木工程專業(yè)課程描述_第5頁
已閱讀5頁,還剩5頁未讀 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡介

DescriptionsoftheMainCourses

Course

CourseDescriptions

StructureMechanics(A)

Credits:5

TotalLectureHours:

80

Programsapplicable:

CivilEngineering

StatusintheCurriculum:

Keycourse/Compulsory

Pre-requisites:TheoryofMechanics,MaterialMechanics.

Structuralmechanicsisthecompulsorykeycourseforthestudentsmajoredincivilengineering.TheaimofthecourseistoprovidestudentswiththebasicprinciplesandmethodsinanalyzingframedstructuresbasedontheknowledgeofTheoryofMechanicsandMaterialMechanics;thecapabilitiesofstructureanalysisandcalculationandthefirmfoundationsforthestudyofadvancedcourses,structuredesignandscientificresearch.

Thecoursedealsmainlywiththekinematicanalysisofplanesystems,determinationofinternalforcesanddisplacementsofstaticallydeterminatestructures;analysisofstaticallyindeterminatestructuresbyforcemethod,displacementmethodandthemomentdistributionmethodrespectively;theinfluencelinesanditsapplications;andmatrixanalysisofthestructures.

IntroductiononCivilEngineering

Credit/Hours:

1/16

StatusintheCurriculum:RequiredCourse

Pre-requisites:

None

Programsapplicable:CivilEngineering

ThisisarequiredcourseforthestudentsinthemajorofCivilEngineering.Itiscoursedesignedtofamiliarizetheenteringstudentwiththenatureandscopeofcivilengineeringanditscomponentspecialtyareas.Theobjectiveofthiscourseistogivethestudentsafundamentaloutlineaboutthecoursesdesignedfortheprogramandtherequirementtocompletetheprogram.

TopicscoveredinthiscourseincludetheintroductionofCivilEngineeringasadisciplineaswellasgeneralexpressionofallkindofcivilworks,theoutlineandrequirementsofknowledgeandabilityoftheprogram,outlineofbuildingstructure,bridgestructure,geotechnicalandundergroundworks,roadandrailinfrastructuresandthefundamentalconceptofEngineeringmanagements.

TheoreticalMechanics(A)

Credits:5

TotalLectureHours:

80

StatusintheCurriculum:

Keycourse/Compulsory

Programsapplicable:CivilEngineering

TheoreticalMechanicsisthestudyofthewaymatterandforcesinteractwitheachother.Hereweareconcernedwithmacroscopicbodies,i.e.,bodiesthatyoucaneasilysee,inthesolidstate.TheoreticalMechanicsincludes:Statics,DynamicsandKinematics.

Staticsisafieldwithinmechanicswhichconcernsitselfwithforceswhennochangeinmomentumoccurs.

Dynamicsisafieldconcernedwithforcesandmatterwhenachangeinmomentumdoesoccur.

Kinematicsisastudyofmotionwithoutregardtotheforcespresent.Itissimplyamathematicalwaytodescribemotion.

MechanicsofMaterials

Credits:

5

TotalLectureHours:

80

StatusintheCurriculum:

Corerequiredcourses

Appliedspecialty:

CivilEngineering

MechanicsofMaterialsisthestudyofbasictheoryofstructurewithforces,i.e.,internalforce,stress,strain,distortion.It’sthebasic

corerequiredcoursesofcivilengineering.

Hereweareconcernedwithstrength,stiffnessofrodsorshaftorbeam,andalsothestabilityofcolumnsundercompression.Inordertoanalyzingcomplexloads,stress-stateandcriterionofstrengthdesignshouldbeconcerned.

EngineeringGeology

Credits:2

TotalLectureHours:32

StatusintheCurriculum:Specialbasiscourse

Pre-requisites:MaterialMechanics,Surveying

Programsapplicable:

civilengineering

Soilandrockmasses,groundwater,heearthinteractandinfluencewithallkindsofengineeringconstructions.Allkindsofengineeringgeologicalproblemsshouldbeknownandunderstoodinordertoensurethesafeconstructionandoperationofengineeringstructures.Atthesametime,thegeologicenvironmentshouldbeprotectedduringtheconstructionofengineeringstructures.

Geologicfunctions,mineralsandrocks,geologicalstructure,groundwater,theengineeringpropertiesofsoil,theengineeringpropertiesofrocks,thestabilityofrockmassesandallkindsofengineeringgeologicproblems,suchasregionalstability,slopestability,adjoiningrockstability,basestability,seepagestability,karsts,debrisflowsandgeo-stresses,willbetalkedaboutinthiscourse.

Studentswillmasterthebasicanalyticalprincipleofengineeringgeologyandcanreadgeologicalmaterial,analyzeengineeringgeologicconditionsandsolveengineeringgeologicproblemsafterfinishingthecourse.Thestudyingofengineeringgeologywillnotonlylayasolidfoundationforstudentsofcivilengineeringtostudyotherspecialcourses,butalsoprovidebasicknowledgeforstudentswhowillpursueadvancedstudiesinotherspecialtiessuchashydraulicandhydro-powerengineering,miningengineering.

SoilMechanicsandFoundationEngineering

Credits:5

TotalLectureHours:80

Pre-requisites:Mechanicsofmaterials,Engineeringgeology

Programsapplicable:CivilEngineering

“SoilMechanicsandFoundationEngineering”isacompulsoryspecializedcorecourseinCivilEngineering.Theteachingobjectivesofthiscourseinclude:tomakethestudentsmasterthebasictheoryandprincipleofsoilmechanicsandfoundationengineering;toenhancethestudents’scienceliteracyandcreativethinkingabilityincivilengineering;tomakethestudentsmasterthebasicknowledgeandskillsinthedesignofearthstructures,i.e.thefoundationsofbuildings,thefoundationsofbridges,theroadfoundations,tunnels,damsandsoon.Throughthestudy,thestudentsshouldobtaintheabilityforcreativelysolvingtechnologyproblemsinthecivilengineeringpractices.

Themaincontentsinvolvedinthiscourseinclude:basicphysicalandmechanicalpropertiesforsoils;knowledgeonsoildeformation,seepage,andshearingbehavior;basictheoriesandanalysismethodsforgeotechnicalproblems.

Surveying(A)

Credits:5

TotalLectureHours:80

StatusintheCurriculum:undergraduatemajorcourse

Pre-requisites:AdvancedMathematics,ProbabilityTheoryandMathematicalStatistics

Programsapplicable:CivilEngineering

"Surveying(A)"isaprofessionalmaincoursewhichisrequiredtothemajorofCivilEngineering.Itishighlypracticalwithacloseintegrationoftheoryandpracticeaswell.Thegoalofthiscourseistoenablethestudentstomasterthebasictheory,concepts,techniquesandmethodsofsurveying,totrainthemprincipallyforcapabilitiesofinnovation,researchandhands-onpractice,andtohelpthemdevelopthebasicengineeringqualitystepbystep

Thiscoursemainlyincludescontentasfollows:basicconcepts,theoryandmethodsforGeodesy,includingleveling,anglemeasurement,distancemeasurementaswellastheconstructionanduseofvarioussurveyinginstruments.Besides,italsodiscussedbasicknowledgeofadjustment,controlsurveyingofsmallareas,largescaletopographicmapssurveyingandtheirapplication,basictasksofsettingout.Preliminarysurveyandfinallocationsurveyingforindustrialandcivilbuildings,linecurves,railwaysandroads,surveyingprinciplesandmethodsforbridgesandtunnels,pipelineengineering.IntroductiontothetheoriesandapplicationsofGPSandGIS.

MaterialsofCivilEngineering

Credits:3

TotalLectureHours:48

StatusintheCurriculum:

Fundamentalcourseforthespecialtyincivilengineering

Programsapplicable:CivilEngineering

Pre-requisites:ProbabilityandStatisticalMathematics,MechanicsofMaterials

Asafundamentalcourseforthespecialtyincivilengineering,“MaterialsinCivilEngineering”coversavarietyofmaterialsusedincivilengineering,describingpropertiesandengineeringapplicationsofthesematerials.Itprovidesinformationoftherelationshipbetweenthecharacteristicsofthematerialsandtheirsuitableutilization.Fordifferentsortsofmaterialswhichhavesimilarapplications,understandingisemphasizednotonlyoncommonfeaturesofthem,butalsoondifferencesinpropertiesbetweenthem.Cementandconcretearetwokeychaptersofthiscourse,whileselectivedescriptionisalsogivenforothermaterials,includingwater-proofmaterial,decorativematerials,heat-isolatingmaterials,sound-isolatingmaterials,andgreeneco-materials.Teachingofresearchtypeisalsoconducted,intheformsofterm-papers,tomakestudentstrainedthroughoutalltheprocessofaterm-paperinrelationtocivilengineeringmaterials,fromliteraturesearchingtogivingapresentationinclass.Viathetrainingofterm-papers,studentscanprocureknowledgeoflatestapplicationsofmaterialsincivilengineeringandlatestresearchfindingsreportedinliterature.Acoupleofexperimentaldemonstrationsarearrangedforstudentstohavedirectexperienceofthematerialsandpracticeintestingthematerials,soastostrengthentheirunderstandingofthepropertiesandapplicationsofthematerials.

IntroductionPracticeforCivilEngineering

Credit/Hours:

1/1week

StatusintheCurriculum:RequiredCourse

Pre-requisites:

DescriptiveGeometry,EngineeringDrawing

Programsapplicable:CivilEngineering

ThisisarequiredcourseforthestudentsinthemajorofCivilEngineering.Itisapracticecoursedesignedtofamiliarizethestudentwiththenatureofvarieskindofcivilengineeringstructures.Theobjectiveofthiscourseistogivethestudentsafundamentalknowledgeinthedesignandconstructionofbuildingstructure,bridge,geotechnicalandundergroundstructurethroughthepracticalsurveyintheconstructionsite.

Topicscoveredinthiscourseincludetheidentificationof

engineeringdrawing,sitevisittotheconstructionsitesofbuildingstructure,bridgestructure,geotechnicalengineering,undergroundstructure,roadandrailengineeringtogetfundamentalpracticalconceptaboutthecompositions,types,constructionmethodsoftheaboveengineeringstructures.

EngineeringStructureLaboratory

Credits:1.5

TotalLectureHours:24

Pre-requisites:EngineeringMechanics,StructureDesignTheory

Programsapplicable:CivilEngineering

“Engineeringstructuretest”isabasiccourseofcivilengineering.Thecoursedescribestheengineeringstructureexperimentwhichcontainsloadingtechnology,measurementtechniques,observationmethodsanddataanalysisandprocessing,aswellasthetestandevaluationoftheexistingstructures.

Thetaskofthecourseistomakestudentsfullyunderstandtheentiretestingprocessofthestructure,aswellasthebasicprinciples,propertiesandapplicationmethodsofvariousmetersandtestinstruments,whichwilllaythefoundationforengineeringdesign,structuraltestinginconstruction,qualityassessmentandallkindsofscientificresearchinthefuture

EngineeringstructuretestcontainsStructure,electronic,mechanical,hydraulicandotherdisciplinesofknowledge,whichrequirestofocusontheconjointpointofallrelevantdisciplinesduringteaching.Withthescientificandtechnologicaldevelopment,testingequipmentandmethodsareconstantlyimproving.Weshouldkeeppacewiththelatestdevelopmentsathomeandabroad,sothatstudentscouldknowtheoveralldevelopmentofstructuretest.

Whenconditionpermitted,universityshouldorganizestudentstovisitinsitutests,sothatthestudentscouldfurtherunderstandthewholeprocessofengineeringstructuretest.Arrange12-classhoursofteachingexperimenttomakestudentsmasterthestraintestingtechnology,thebridgeconnectiontechnologyandtheoperatingmethodoftherelevantinstruments,andcultivatestudents’practicalability.Alsoinordertocultivatestudentabilitytoanalyzeandsolveproblems,eachstudentisrequiredtosubmitatestreportinaccordancewiththerequirementsoftestinstructions,andanalyzetestcontentandresultsindetail.

BilingualUniversityPhysics(A)I

&

BilingualUniversityPhysics(A)II

Credits:

8

TotalLectureHours:

128

StatusintheCurriculum:Undergraduate

/Compulsory

Pre-requisites:AdvancedMathematics

Programsapplicable:

EngineeringandNon-PhysicsStudents

Physics

isa

\o"Naturalscience"

naturalscience

thatinvolvesthestudyof

\o"Matter"

matter

,aswellasallapplicableconcepts,suchas

\o"Energy"

energy

and

\o"Force"

force

.

Itisatwo-semester

introductory

calculus-basedphysicscourse.Topicsinclude

mechanics,electromagnetism,

kinetictheoryofgasandthermodynamic,oscillationsandwaves,

optics,Quantumphysics,etc.Asolidknowledgeofthephysicsprinciplesisfoundationalforscientistsandengineers.

Themajorobjectivesofthiscourseareforstudentstolearnthefundamentalprinciplesofphysics,todevelopsolidandsystematicproblemsolvingskills,andtobuildupthefoundationsforfurtherstudiesinsciencesandengineering.

GeometryandAlgebra(B)

Hours/Credits:

56/3.5

Programsapplicable:

Engineering

ThecourseisanimportantbasiccoursetostudentsmajoringinEngineering.Thegoalofthiscourseistoprovidethestudentswiththefundamentalconcepts,theoriesandmethodsofLinearalgebraandanalyticgeometry,andtoheightenstudent’sabilityinabstractthinking,inferenceandproofandgeometryintuition.

Materialtobecovered:

Chapter

1:

Matrices

Chapter

2:

Determinants

Chapter

3:

Germetryspaces

Chapter

4:

Vectorspaceswithdimemsionn

Chapter

5:

EigenvaluesandEigenvectors

Chapter

6:

QuadraticformsandQuadraticSurfaces

ProbabilityTheoryandMathematicalStatistics(B)

Hours/Credits:

64/3.5

Programsapplicable:ComputerandInformationTechnology;TrafficandTransportationandsoon

Pre-requisites:

Calculus;LinearAlgebraandsoon.

Thegoalofthiscourseistoprovidethestudentwithacomprehensiveviewwithrespecttofoundationofprobabilitytheoryandmathematicalstatistics.Thecourseismainlytostudyrandomphenomenaandtheirstatisticalregularity.Themaincontentincluderandomexperimentandsamplespace,classicalprobabilitymodel,conditionalprobability,Independenceofevents,discreterandomvariablesandtheirdistributionlaw,continuousrandomvariablesandprobabilitydensity,multidimensionalrandomvariableanditsdistribution,numericalcharacteristicsofrandomvariables,thelawoflargenumbersandcentrallimittheorem,samplingdistribution,parameterestimation,theapplicationofcomputersoftwareinmathematicalstatisticsandsoon.

Materialtobecovered:

Chapter1:

Probabilityandrandomevents.

Chapter2:

Randomvariableanddistribution.

Chapter3:

Multidimensionalrandomvariableanddistribution.

Chapter4:

Figurecharacteristicofrandomvariable.

Chapter

5:

Largenumberlawandcentrallimittheorem.

Chapter

6:

ParameterEstimation.

Chapter

9:

ApplicationofMatlabinmathematicalstatistics.

Calculus(B)Ⅰ

Hours/Credits:

80/5

StatusintheCurriculum:

Basic/Compulsory

Programsapplicable:

variousengineering

Pre-requisites:

None

Thegoalofthiscourseistoprovidethestudentwithbasicknowledgeofcalculusofonevariablefunctions.

Materialtobecovered:

Chapter1:

Functionsandlimits.

Chapter2:

Derivativeanddifferential.

Chapter3:

Meanvaluetheoremofdifferentialandapplicationsofderivatives.

Chapter4:

Indefiniteintegral.

Chapter5:

Definiteintegral.

Chapter6:Applicationsofdefiniteintegral.

Calculus(B)Ⅱ

Hours/Credits:

80/5

StatusintheCurriculum:Basic/Compulsory

Programsapplicable:variousengineering

Pre-requisites:CalculusB(I)

Thegoalofthiscourseistoprovidethestudentwithbasicknowledgeofcalculusofmultivariablefunctions,infiniteseriesanddifferentialequations.

Materialtobecovered:

Chapter

7:

Differentialcalculusofmultivariablefunctions.

Chapter

8:

Multipleintegral.

Chapter

9:

Lineintegralsandsurfaceintegrals.

Chapter

10:

Infiniteseries.

Chapter

11:

Differentialequations.

PhysicalExperimentⅠ

Creditst:2

TotalLectureHours:32

StatusintheCurriculum:Undergraduate/Compulsory

Pre-requisites:AdvancedMathematics

Programsapplicable:EngineeringandNon-PhysicsStudents

PhysicalExperimentIisabasiccourseof

EngineeringandNon-Physicsstudents.Itincludes(1)thedefinitionofmeasurement,error,standarduncertaintyandrecordandcollocation,(2)methodsofphysicalexperiment,(3)usingofmeasuringinstruments,(4)operatingofphysicalexperiment.

Themajorobjectivesofthiscoursehelpstudentstolearnthefundamentalprinciplesofphysicalexperiments,todevelopsolvingskillsofsolitudeandsystematicproblem,andtolaythefoundationsforfurtherstudiesinsciencesandengineering.

PhysicalExperimentⅡ

Credits:2

TotalLectureHours:32

StatusintheCurriculum:

Undergraduate/Compulsory

Pre-requisites:AdvancedMathematics

Programsapplicable:EngineeringandNon-PhysicsStudents

OnthebasisofPhysicalExperimentI,PhysicalExperimentIIincludescomprehensiveexperimentsanddesigningexperiments.

Themajorobjectivesofthiscoursehelpstudentstolearnthefundamentalprinciplesofphysicalexperiments,todevelopsolvingskillsofsolitudeandsystematicproblem,andtolaythefoundationsforfurtherstudiesinsciencesandengineering.

Structurefiniteelementanalysis

Credits:2

TotalLectureHours:32

StatusintheCurriculum:ElectiveCourse,Non-MainCourse

Pre-requisites:StructuralMechanics,LinearAlgebra

Programsapplicable:CivilEngineering

Thiscourseisanelectivecourseopenedforjuniorincivilengineering,whichisacombinationoftheoryandpractice.Thetaskofteachingthiscourseistoenablestudentstomasterthebasicideasandmethodsofsolvingthemechanicalproblemsofspacetrussstructureusingthefiniteelementmethod,basedonstructuralmechanicsknowledge,befamiliarwiththesolvingprinciple,ideasandgeneralprocessofthefiniteelementmethod,andbeininitialcontactwith

thepreparationofthefiniteelementprogramsteps,learntheapplicationsofadvancedcomputerlanguageinthefield.Theteachingofthiscourseaimsat

cultivatingtheabilityto

solveproblemsofstructuralmechanicsandbuildingstructuraldesignusingcomputernumericalanalysismethod,onthebasisofusing

researchteachingmethods,throughlectures,studentdiscussions,programanalysisandtrackingandothermeans.Toachievetheteachingobjectivesofthiscoursewillhelpstudentsimprovetheirprofessionalqualityfor

futureindependentstructuraldesigncalculationsinrelatedfields.

Domesticandinternationalresearchanddevelopmentmethodinthefieldoffiniteelement.Theapproachofbarelementstiffnessmatrix,

beam

elementstiffnessmatrix,coordinatetransformation,theequivalentnodalloads,supportingboundandforceddisplacement.Theoutlineofoverallstructurestiffnessmatrixstoragemethods,the

sparsenessandpositivedefiniteof

structurestiffnessmatrix,the

nodeconstraintinformationtableandunitpositionarray,bandwidthstorageofstiffnessmatrix,variable-bandwidthstorageofstiffnessmatrix.Methodsforsolvinglinearequations.Thecognitiveanduseoffiniteelementanalysissoftware.Theconceptandapplicationofactivefreedom,springunitandinclinedsupport,theboundaryconditionsofsymmetryplaneandantisymmetryplane,triangularplateelement,quadrilateralplateelement.

Theteachingteamofthecourseissupportedbybridgedynamicanalysisresearchgroupteam,withexcellentteachingstaff,

throughcombinationoftheoreticalstudyandteachingonmachinestocarryoutheuristicteachingandresearchteaching,tofoster

students'autonomouslearningability.

ConstructionTechnology

Credits:

2

TotalLectureHours:32

StatusintheCurriculum:Maincourse

Pre-requisites:Reinforcementconcretetheory,Steelstructure,Foundationandbase

Programsapplicable:BuildingEngineering

Thecourseisoneofthemaincoursesforthosestudentswhomajorinthebuildingengineering.Themaincontentincludesthatvariousconstructionmethodsandtechnologytheories,qualitycheckmethodandnewmaterials,newtechnologies,newconstructionmethods,ect.Comprehensivenessandpracticeisthemaincharactersofthecourse.Thetaskofthecourseistomeettherequirementoftalentsinthefieldofbuildingconstructioninourcountryandimprovethestudents’abilityonsolvethepracticalengineeringproblemsbytheknowledgethathavebeenlearnt.

Themaincontentsincludethatearthwork,stakework,masonrywork,concretestructureconstruction,structureinstallation,scaffoldengineering,waterproofandfitment.

ConcreteStructural

Fundamentals

Credits:5

TotalLectureHours:80

StatusintheCurriculum:Maincourse

Programsapplicable:CivilEngineering

ThecourseisdesignedforjuniorsinCivilEngineering,anditisarequiredcourseforthestudentsmajoringinCivilEngineering.Theobjectiveofthecourseistoextendtheknowledgeandproficiencyinanalysisanddesignofreinforcedconcreteelements,andtobuildsomestructuralconcepts,andenhancethecomprehensiveabilitiesandhelpstudentslearntoapplytheprinciplesofreinforcedconcretedesigntorealworldproblems;andpreparestudentsforentrylevelstructuralengineeringemployment.

Thefollowingtopicsarecovered,i.e.,thepropertiesofmaterials;thedesignmethodologiesofconcretestructures;designofbeamsinflexure;designofbeamsforshear;designofcolumm;designofelementsintorsion;

serviceabilityconsiderationsforbeams(deflectionsandcracking);prestressedconcreteelement;allowablestressdesignapproach;anddesignoffloorsystems.

RailwayTrackEngineering

Credits:4

Pre-requisites:StructuralMechanics,MaterialMechanics,Introductiontorailwayetc.

TotalLectureHours:64

Programsapplicable:CivilEngineering,Road&RailwayEngineering

RailwayTrackEngineeringisanimportantfundamentalcoursefordesign,constructionandtrackmanagementof

railwayandurbanrailtransit.Themajortargetistopassontheknowledgeoftrackcomponents,

designprincipleandmethodsoftrackandtrackmanagementtostudents

systematically.

Themaincontentofthiscourseincludes:structuresandcomponentsoftrack,railwaytrackgeometry,structuralmechanicsanalysis,turnoutsandcontinuousweldedrailetc.

LinelocationDesign

Credits:

4

TotalLectureHours:64

S

溫馨提示

  • 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽,若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫網(wǎng)僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請與我們聯(lián)系,我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。

評論

0/150

提交評論