海船船员考试船长单选题练习

海船船员考试船长单选题练习

1、中版海图某灯塔射程21M,灯高60m,已知某船眼高16m,则能见度良好时该灯塔灯光

的最大可见距离为：

A.20.0nmile

B.20.9nmile

C.24.5nmile

D.25.8nmile

2Acontractofaffreightmentisa.

A.BillofLading

B.BottomryBond

C.manifest

D.PortageBill

3、isnotajoboftheradarantenna.

A.Toreceivethehigh-frequencypulsesfromthetransmitter

B.Tofocusthepulsesintoabeam,andsendthemintospace

C.Topickupreflectedpulsescomingfromobjectsthathavebeenstruckbythebeam

D.Toreflectmicrowaves

4、Sincelubricatingoilsandjetfuelsareacutelywatercritical,itisnecessarytoeffectfullline

drainingandmoppingupofanywaterintanksbeforeloading.

A.purgingwithhydrocarbongas

B.gas-freeingoperations

C.maintaininganinertcondition

D.fulllinedrainingandmoppingupofanywater

5、HighconcentrationsofH2Sgasaremostdangeroustopersonnelbecausetheycan.

A.causeinvoluntarymusclecontractions

B.paralyzeyourbreathingsystem

C.causeeyeinflammation

D.causedizziness

6、装配活塞环时，各气环的开口位置要错开()。

A.6(T

B.100°

C.120。

D.180°

7、InILOConvention，HoursOfWorkmeans.

A.anytimeonboardtheship

B.shortbreaks

C.timeoutsidehoursofwork

D.timeduringwhichseafarersarerequiredtodoworkonaccountoftheship

8、利用平行方位线转向,自转向物标所作的方位线应。

A.与原计划航线垂直

B.与新计划航线垂直

C.与原计划航线平行

D.与新计划航线平行

9、三方位定位时，位置线交角最佳值为：

A.30°

B.6O0

C.9O0

D.120°

10、狭水道航行，航道较窄，为确保航行安全，在用雷达核实船位时，宜用：

A.船首方向远距物标方位核实

B.船首方向远距物标距离核实

C.正横方向近距物标距离核实

D.正横方向远距物标方位核实

11、CargosecuringforRo-Roisbasedontheconceptof.

A.Solidpacking

B.Rapidloadinganddischarge

C.Vesselloadedfullanddowntohermarks

□.Palletizedcargo

12、The44horselatitudesMregionsof.

A.Briskprevailingwinds

□.Lightairsandcalms

C.Abundantblueseagrassvegetation

D.Noneoftheabove

13、Onavoyagecharter,whenavesselisreadytoloadcargo,theMastershouldrendertothe

charterera.

A.NoticeofReadiness

B.MasterCertificateofService

C.ShipmastersDeclaration

0.VesselUtilizationandPerformanceReport

14、材料：

Theshippershallbedeemedtohaveguaranteedtothecarriertheaccuracyatthetimeof

shipmentofthemarks,number,quantityandweight,asfcrnishedbyhim,andtheshippershall

indemnifythecarrieragainstallloss，damagesandexpensesarisingorresultingfrom

inaccuraciesinsuchparticulars.Therightofthecarriertosuchindemnityshallinnowaylimithis

responsibilityandliabilityunderthecontractofcarriagetoanypersonotherthantheshipper.

Unlessnoticeoflossordamageandthegeneralnatureofsuchlossordamagebegivenbeforeor

atthetimeoftheremovaloftheGOODsintothecustodyofthepersonentitledtodelivery

thereofunderthecontractofcarriage,or,ifthelossordamagebenotapparent,withinthree

days,suchremovalshallbeprimafacieevidenceofthedeliverybythecarrieroftheGOODsas

describedinthebilloflading.

ThenoticeinwritingneednotbegivenifthestateoftheGOODshas,atthetimeoftheirreceipt,

beenthesubjectofjointsurveyorinspection.

Inanyeventthecarrierandtheshipshallbedischargedfromallliabilityinrespectoflessor

damageunlesssuitisbroughtwithinoneyearafterdeliveryoftheGOODsorthedatewhenthe

GOODsshouldhavebeendelivered.

Inthecaseofanyactualorapprehendedlossordamagethecarrierandthereceivershallgive

allreasonablefacilitiestoeachotherforinspectingandtallyingtheGOODs.

问题：

Itcanbeconcludedthatthepurposeofthisclauseistoprotecttheinterestof.

A.shipowners

B.shippers

C.charterers

D.themerchant

15、某船TC357°,测灯塔A的TB330.05,半小时后又测得A的TB312°,若船速为16kt,则

该船与A的正横距离为

A.8'

B.7'

C.5.6'

D.6'

16、TheinformationonisnotlikelyfoundinTheMarinersHandbook(NP100).

A.IALABuoyagesystem

B.hydrography,topography,navigationalaidsandtheirservices

C.basicmeteorologyandnavigationiniceandhazardsandrestrictionstonavigation

□.informationontides,currentsandcharacteristicsofthesea

17、同一航道的标志号码可遵循，也可按左双右单编排。

A.逆浮标习惯走向顺序编号

B.沿浮标习惯走向顺序编号

C.逆浮标习惯走向或者浮标习惯走向都可以

D.逆浮标习惯走向和浮标习惯走向都不可以

18、右侧标光色为.：，

A.红光

B.绿光

C.黄光

D.白光

19、Youareonatankerdesignedtocarrymoltensulfur.V/hichstatementisTRUE.

A.Theremustbetwoportabletoxicvapordetectorsonboard

B.ThecargotankventilationsystemmustmaintaintheH2Svaporconcentrationat1.85%ormore

byvolume

C.Cargotemperaturemaybetakenbyportablethermometers

D.Thepressureintheheatngcoilsinthetanksmustbelessthanthatofthecargoexertedon

them

20、当能见度小于2海里时，负责航行的值班驾驶员应o

A.加强了望，注意守听雾号

B.通知船长上驾驶台亲自指挥

C.按避碰规则的要求鸣放雾号

D.以上均应做到

21、Allfinesandexpensesfrominsufficiencyandinadequacyofpackingormarksshallbeborne

by■

A.thecarrier

B.theconsignee

C.themerchant

D.theowner

22、Whencommencingcargooperationsonacontainership,onecellatahatchisgenerally

dischargedcompletely(tothebottomoftheship)beforeremovinganycontainersfromthe

adjoiningcellsto.

A.removeanexistinglistthatwouldslowdowncargooperations

B.initiateloadinginconjunctionwithunloadingatthehatch

C.improvestabilityduringcargooperations

D.allowlongshoremeneasyaccesstothehatch

23.TheMasterorpersoninchargeofashipisrequiredtolog.

A.thenamesofallpersonsonboard

B.onlythenamesofthecrewmembersonboard

C.onlythenamesofpassengersonboard

0.informationonemergencytrainingdrills

24、TheagencywhichassignsloadlinesandissuesLoadlineCertificatesinUSisthe.

A.AmericanBureauofShipping

B.SecretaryofCommerce

C.USCustoms

D.USCG

25、WhichstatementconcerninglocatingsignalsintheGMDSSisFALSE.

A.LocatingsignalsaretransmittedbysurvivalcraftVHFtransceivers

B.LocatingsignalsaretransmittedbySARTs

C.Locatingsignalsareintendedtofacilitatethefindingofadistressedvesseloritssurvivors

□.Locatingsignalsarenottransmittedbyautoalarmgenerators

26、孤立危险标的特征是：

A.标身为黑红黑竖纹

B.标身为红黑红啜纹

C.标身为红黑红横纹

D.标身为黑红黑横纹

27、紧追权在被追逐船舶进入何地时立即终止？

A.公海

B.追逐国的毗连区

C.追逐国的另一港口

D.被追逐船舶的船旗国或第三国领海

28、InternationalCertificateofFitnessfortheCarriageofDangerousChemicalsinBulkshallbe

carriedonboardby.

A.chemicaltankersconstructedonorafter1July1986

B.chemicaltankersconstructedbefore1July1986

C.AIIchemicaltankers

D.oiltankersof150grosstcnnageandabove

29、Permanentmagnetisrrisfoundin.

A.hardiron

B.softiron

C.verticalirononly

□.horizontalirononly

30、多普勒计程仪采用双波速是为了。

A.能够测定船舶前进和后退速度

B.消除由于声速变化所引起的测速误差

C.消除船的摇摆或颠簸而引起的测速误差

D.A+B+C

31、Inthecaseofnewcrudeoiltankers,theadditionalballastpermittedshallbecarriedincargo

tanksonlyifsuchtankshavebeenbeforedeparturefromanoilunloadingpertor

terminal.

A.inerted

B.crudeoilwashed

C.diluted

0.cleaned

32、StevedoresandtallymentobearrangedbytheCharterersinloadinganddischarging,who

shallbeconsideredastheservantsandsubjecttotheordersanddirectionsofthe

Master.

A.Charterers'

B.Owners'

C.NeitherCharterers'norOwners'

D.EitherCharterers'orOwners'

33、VESSEL'SEXPERIENCEFACTORislikelyusedincargosurveyreport.

A.general

B.liquid

C.container

D.heavy

34、AllexpensesofCargo-handlingare.

A.TobeaccountedfortheCharterers

B.TobepaidfortheCharterers

C.TobehandledfortheCharterers

D.TobepaidbytheCharterers

35、夜间在海上，你船看到他船的号灯为品字形三盏绿灯，且在中间这盏绿灯下方还有•盏

白灯，则来船为,

A.从事清除水雷作业的船舶对水移动

B.从事清除水雷作业的船舶不对水移动

C.在锚泊中从事清除水雷的船舶

D.以上均可能是

36、Fuelingresultsinthecollectionofwasteoilindrippansandcontainers.Whichisanapproved

methodofdisposingofthewasteoil?

A.Drainingitoverboardwhenthevesselgetsunderway

B.Placingitinproperdisposalfacilities

C.Addingsinkingagentsanddischargingitintothewater

0.Mixingitwithdispersantsbeforedrainingitoverboard

37、硫是钢材中的有害成分,它会：

A.产生冷脆现象

B.产生热脆现象

C.A,B都对

D.A,B都不对

38、狭水道航行，计划采用导标方位导航法，此时最好选择位于的单一物标作为

导标来引导船舶安全航行。

A.计划航线正前方

B.计划航线正后方

C.计划航线正横附近

D.船首向附近

39、根据《国际载重线公均》的规定，当船舶从内河港口驶出时，.

A.不允许超载

B.允许超载，但是超载重量应等于从出发港到入海口所需消耗的油水的重量

C.是否允许超载要根据船船的大小而定

D.以上都不对

40、0800至0900间的平均流向和流速。

A336°，3.6节

B.156°,3.6节

01540,2.5节

D.334°,2.5节

41、Ifyouareunabletostopadieselenginebyanyothermeans,youshould.

A.DischargeaC02extinguisherintheairinlet

B.Pulloffthedistributorcap

C.Securethejacketwater

D.Securethestartingairsupplyvalve

42、isnotatypeoftide.

A.SEMIDIURNAL

B.DIURNAL

C.MIXED

□.OSCILLATING

43、Beforeweldinginatankthathascarriedpetroleumproducts,thetankmustbecertifiedby

A.theCoastGuard

B.theABS

C.theshipyardfiredepartment

D.acertifiedmarinechemist

44、远洋船锚链链环的直径比原来直径减少（）时，需要换新后再使用。

A.12%

B.15%

C.85%

D.80%

45、Whichgeneralweatherconditionsshouldyouexpecttofindinalowpressuresystem

A.Fairweather

B.Precipitationandcloudiness

C.Scatteredcloudsathighelevations

0.Gradualclearingandcoolertemperatures

46、Theconsignee'srefusaltotakedelivery,orfailuretodosowithinareasonabletime,also

putsanendtoliabilityasacarrier.

A.theShipowner's

B.theCharterer's

C.theShipowner's

D.thecargoowner's

47、Inordertowithstandfluidheadpressureonaship,stiffenersareoftenattachedtothe

bulkhead.

A.penetrations

B.plating

C.framing

□.brackets

48、isnotaproperprocedureforalashingofthetimberdeckcargo.

A.tobeefficientlyattachedtothedeckstringerplateorotherstrengthenedpoints

B.topassoverthetimberdeckcargo

C.tobeshackledtoeyeplates

D.tobeappliednotcontactingwiththetimberdeckcargo

49、TheImmigrationandNaturalizationServiceisconcernedwithwhichdocumentonavessel

makingpreliminaryentryintoaU.S.portfromaforeignport.

A.CargoManifest

B.CertifiedCrewList

C.CurioList

□.ShippingArticles

50、按照现行的《73/78防污公约》议定书I的要求，船舶在下列情况下应进行报告：I.为

在海上救助人命而进行的油类超标的可能排放II.为船舶安全而进行的油类超标的可能排

放III.船舶营运期间排放油类超过允许的排放量或瞬间排放率IV.船长15米及以上船

舶发生影响船舶安全的损坏。

A.I〜IV

B.I-III

C.II-W

D.I、IKN

51、孤立危险标的特征是：

A.标身为黑红黑竖纹

B.标身为红黑红竖纹

C.标身为红黑红横纹

D.标身为黑红黑横纹

52、Afireisdiscoveredinthebowofyourvesselwhilemakingway.Thewindisfromaheadat35

knots.Youshould.

A.remainoncourseandholdspeed

B.remainoncoursebutslackthespeed

C.changecoursetoputthewindoneitherbeamandincreasespeed

□.changecourseandputthesterntothewind

53、Theairborneconcentrationsofsubstances(suchasH2S)underwhichnearlyallworkersmay

berepeatedlyexposedwithoutadverseeffectsarecalled.

A.Exposurelimits

B.Concentrationlimits

C.Thresholdlimitvalues

D.Substancelimitvalues

54、集装箱货物在整箱接，整箱交下的交接方式有：

A.门到门I

B.门到场II

C.场到门IV.场到场

D.MI

E.inn

F.iinv

G.HV

55、西太平洋副热带高压的季节性变化经常表现为。

A.北进常伴随着西伸，南退常伴随着东退

B.北进常伴随着东退，南退常伴随着西伸

C.北进和南退都常伴随着西伸

D.北进和南退都常伴随着东退

56、两天体定位，用描述船位随机误差最好。

A.船位误差带

B.船位误差四边形

C.船位误差椭圆

D.船位误差圆

57、Ifyouhadstartedloadingearlier,youloadingnow.

A.wouldfinish

B.willhavefinished

C.wouldhavefinished

D.willbefinished

58、由随机误差引起的天文船位误差三角形，其最概率船位在三角形的：

A.三边垂线的交点上

B.三条中线的交点上

C.三条角平分线的交点上

D.三条反中线的交点上

59、Exceptasprovidedforotherwise,anoiltankermightdischargecertainamountatcertainrate

ofoiloroilymixturesintoseawhen.

A.thetankeriswithin50nauticalmilesfromthenearestland

B.thetankerisnomorethan50nauticalmilesfromthenearestland

C.thetankerismorethan50nauticalmilesfromthenearestland

D.thetankerisnotmorethan50nauticalmilesfromthenearestland

60、TheS.S.Hollowpointhasacharterpartyinwhichthechartererassumesnoresponsibilityfor

theoperationofthevesselbutpaysstevedoringexpenses.Whatisthenameofthecharterparty?

A.Bareboat

B.Dispatch

C.Voyage

D.Demise

61、WhatisNOTagradeEproduct.

A.Dioctyl-phthalate

B.Gasoline

C.Formicacid

D.Creosotecoaltar

62、Cargohandlersshouldtakethefollowingprecautionswiththeexceptionoftoavoid

damagefromshifting.

A.Keeptheloadsasclosetotherailordeckaspossible

B.lfcargoislikelytosettle,makeprovisionstosecureitafterithassettled

C.Thoroughlysecureandshoreallcargosothatitcannotmove

D.henstowingcargo,avoidleavingemptypaces

63、船舶发生中拱变形时o

A.中部浮力小于重力，首尾部重力大于浮力

B.中部浮力大于重力，首尾部重力大于浮力

C.中部浮力小于重力，首尾部重力小于浮力

D.B或C

64、为使系统误差和随机误差的误差的总影响小一些，在两天体定位时,应尽可能选择它们之

间的方位差小于90°而又大于30°,以最有利。

A.15°以内为好

B.30°~50°为好

C.50°~70°为好

D.700~90°为好

65、孤立危险标的特征是：

A.标身为黑红黑竖纹

应标身为红黑红竖纹

C.标身为红黑红横纹

D.标身为黑红黑横纹

66、船体构件的焊接形式有：（1）焊接和钾接；（2）对接和角接；（3）搭接和塞焊。

A.1,2对

B.2,3对

C.1,3对

D.1,2,3对

67、Whileoff-loadingfromanoffshoresupplyvesselwiththecrane,thewindincreasesin

strengthandchangesdirectionsignificantly,youshould.

A.Expediteoff-loading

B.Stopoff-loading,butkeeptheoffshoresupplyvesselinthepresentlocation

C.Continueoff-loadingwithnochanges

D.Movetheoffshoresupplyvesseltothedownwindside

68、新三角形和原误差三角形相比较，新三角形倒置了，说明且变动数值大于原系

统误差。

A.缩小了方位系统误差

B.增加了方位系统误差

C.正好消除了方位系统误差

D.罗经差的变动与原有的系统误差反向

69、Ifthevesseldoesnotarrivebythecancelingdate,andtheChartererexpenses,these

expensescanbeclaimedbyhimfromtheShipownerwheretheyareinthereasonable

contemplationoftheparties.

A.occurs

B.incurs

C.discus

D.recurs

70、进港航行，利用船首的方位置标导航，如发现前标偏在后标的右面，表明船舶偏在叠标

线的（测者自海上观测叠标时的左右），应及时调整航向。

A.左面，向左

B.左面，向右

C.右面，向右

D.右面，向左

71、根据《海上交通安全法》的规定，船舶发现下列哪些情况，应迅速报告主管机关？I、

灯浮移位II、不明漂流物III、有碍航行的异常情况IV、他船遇险

A.I-IV

B.I、III、IV

C.I、II、IV

D.II〜IV

72、TheMasterofavesselberthed,mooredoranchoredwithintheareaofjurisdictionancwho

wishestomovehisvesseltoanotherberth,mooringoranchoragewithinthatareafrom

'BahrainPortControl,priortomoving.

A.shallnotrequestpermisson

B.shallrequestpermission

C.shall,ifinconvenience,requestpermission

D.shallsendhispermissiontotheHarbourMaster

73、雷暴天气主要包括。

A.雷阵雨、阵性大风

B.冰直、龙卷风

C.AB都对

D.AB都错

74、Whateffectisachievedfromsoakingananchor.

A.Itallowsthebottomsoiltoconsolidate

B.ltgivesthepalmstimetotriptheanchor

C.ltstabilizesthemooringsystem

D.ltlubricatestheanchorforbettertripping

75、太阳真高度为是测星定位的有利时机。

A.0°八--6°

B.-3°〜—9°

C.-60八—12°

D.0°------12°

76、三天体定位，如果三天体分布范围大于180',并且船位误差三角形是由系统误差引起

的，则消除了系统误差之后的观测船位应在：

A.误差三角形内切圆的圆心上

B.误差三角形外切圆的圆心上

C.误差三角形旁切圆的圆心上

D.误差三角形内任意一点

77、选择自然叠标时，要求前后标志尽可能，且两标志间的距离以些

为好。

A.粗大，远

B.粗大，近

C.细长，远

D.细长，近

78、冷藏货物在舱内进行水平冷却通风时，货堆表面距货舱顶端的空当应为cm。

A.2.5

B.5

C.7.5

D.10

79、根据规定，下列有关对船舶进行安全检查的叙述哪些正确？I.船长应如实报告船舶的

安全情况II.一般禁止对在航船舶进行检查HI.经检查的船舶，一般8个月内不再检查IV.

对中国籍船检查后应签发《船舶安全检查通知书》

A.I〜IV

B.I〜川

C.I、HI、IV

D.I、II、N

80、MeasurestakenbytheAssuredortheUnderwriterswiththeobjectofsaving,protectingor

recoveringthesubject-matterinsuredshallbeconsideredas.

A.awaiver

B.acceptanceofabandonment

C.prejudicetherightsofeitnerparty

D.innowayprejudicetherightsofeitherparty

81、Youareonanice-reinforcedvesselabouttoenterpackice.Youshould.

A.enterthepackonthewindwardsidewherethereisawelldefinediceedge

B.trimtoanevenkeelorslightlydownbythebowtotakemaximumbenefitoftheice

reinforcement

C.takemaximumadvantageofcoastalleadscausedbyoffshorewinds

D.lookforareasofrotteniceandenterperpendiculartotheiceedge

82、Asituationhasoccurredwhereitbecomesnecessaryforyoutobetowea.Whatactionshould

betakentopreventyourvesselfromyawing?.

A.Shiftweighttothebow

B.Shiftweighttothecenteroftheboat

C.Shiftweighttothestern

D.Throwexcessweightoverboard

83、WhatmayNOTbeusedwhensecuringheavyvehiclesaboardRo-Rovessels.

A.Chainlever

B.Turnbuckle

C.Webbing

D.Chain

84、Frappinglines.

A.securethelifeboatinthedavitswheninthestowedposition

B.bringthelifeboatclosealongsidetherailintheembarkationposition

C.givetheoccupantsasafetylinewhentheboatisbeingloweredfromtheembarkationlevel

D.reducetheswingingofthelifeboatattheembarkationlevel

85、若测得某地气温直减率为0.2℃/100m,则可断定该地大气层结。

A.绝对稳定

B.绝对不稳定

C.条件性不稳定

D.ABC都错

86、根据水路货物运输规则规定，货物交付时发生的货运事故，应向—提出

A.到达地的收货人提出

B.到达地的承运人提出

C.起运地的承运人提出

D.向托运人提出

87、Anchorshacklesshouldhaveabreakingstrengththatis.

A.equaltothechainstheyareconnecting

B.25%morethanthechainstheyareconnecting

C.50%morethanthechainstheyareconnecting

D.100%morethanthechainstheyareconnecting

88、WhichfrequenciesandmodesareallocatedfordistressalertinginGMDSS.

A.406MHzviaEPIRB

B.1626.5-1645.5viaINMARSAT

C.Channel70DSCplussix(6)MF/HFDSCfrequencies

D.AIIoftheabove

89、ThelaydaysaccordingtotheCharterPartycommenceat1800hrson13thJune,andwill

expireat1600hrson19thJune,afterthatthevesselwillbeondemurrage.

A.Thiskindofwordingusuallyappearsin.

B.aship'scertificate

C.aNoteofSeaProtest

D.aNoticeofReadiness

90、Whenloadingbulklicuidcargo,whatisthefirstactionyoushouldtakeifacargovalve

jammedopen?

A.Calltheowner,operator,orterminalsupervisor.

B.Unplugthedeckscuppers.

C.Orderthedockmantoshutdown.

D.Runoutthevessel'sorterminal'sfirehose.

91、下列正确的说法是：。

A.风海流随着深度的增加方向逐渐偏转，流速变小

B.当流向与表层海流相反，流速仅为表层海流的4.3%时，这一深度称为摩擦深度

C.AB都对

D.AB都错

92、材料：

Whenacleanbillofladinghasbeenissued,estoppelarisesor,inotherwords,thecarrieris

preventedfromproving,asagainstathirdpartyrelyingonthecleanbilloflading,thattherewas

anythingwrong.Intheceseofinherentvice,however,whichisanaturaldefectinthething

shipped,thecarrierisnotestoppedbyhiscleanbilloflading,becauseacleanbilloflading,in

statingthatacertaincargoisonboard,givessufficientnoticethatthiscargo,inthenatural

courseofevents,mayhavecertainqualitiesordefectswhichallsimilarcargonormallyhas.For

example,acargoofflourwillshrinkslightly,andthisfactdoesnothavetobenotedontheface

ofthebilloflading.

Similarly,wherecargoisunfittowithstandtheordinaryincidentsofthecontractualvoyage

contemplatedbytheparties,owingtosomeinherentviceorhiddendefectpresentedwithinit,

thecarrierisnotestoppedbythecleanbillofladingfromassertingtheinherentdefectexception,

providedthatthedamagehasnotbeenaggravatedbyanyconductofthecarrierorthosefor

whomheisresponsible.

Thecarrierissuingacleanbillofladingisonlyboundbyhisstatementsastotheoutward

conditionofthecargoandsthereforenotestoppedfromprovinginherentviceorhiddencefect

whenthatviceordefectwasnotapparentatthetimeofshipment.Inotherwords,acleanbillof

ladingdoesnotnecessarilyfulfilltheshipper'sburdenofproofinrespecttoinherentviceor

hiddendefect.

问题：

Theslightshrinkageofflouris.

A.aninherentdefectofthecargo

B.adamagewhichisalwaysaggravatedbytheconductofcarrier

C.aviceordefectwhichshouldbenotedonfaceofB/Lduetothe