首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
如图,在△BAC中,∠B和∠C的平分线相交于点F,过点F作DE∥BC交AB于点D,交AC于点E,若BD=5,CE=4,则线段DE的长为( )A.9 B.6 C.5 D.4
查看本题答案
包含此试题的试卷
教案备课库《七(2)年级暑假数学作业(七)》真题及答案
点击查看
你可能感兴趣的试题
如图△ABC的外角∠CBD和∠BCE的平分线相交于点F则下列结论正确的是
点F.在BC边的垂直平分线上
点F.在∠BAC的平分线上
△BCF是等腰三角形
△BCF是直角三角形
如图在△ABC中∠BAC的平分线与BC的垂直平分线PQ相交于点P.过点P.分别作PN⊥AB于N.PM
如图已知△ABC的外角∠CBD和∠BCE的平分线相交于点F.点F.一定在
∠DAE的平分线上
BC的垂直平分线上
BC边上的高
BC边上的中线上
如图△ABC中∠BAC=90°BC的垂直平分线和BC相交于点D和∠BAC的平分线AE相交于点EAE
如图在△ABC中内角平分线BP和外角平分线CP相交于点P.若∠BAC=50°则∠P.=_°
如图△ABC中AB=AC.∠BAC=54°∠BAC的平分线与AB的垂直平分线相交于点O.将∠C.沿E
1如图1在△ABC中∠ABC的平分线BF交AC于F.过点F.作DF∥BC求证BD=DF.2如图2在△
如图在△ABC中∠ABC的平分线与∠ACB的外角的平分线相交于点P.连接AP.1求证PA平分∠BAC
如图已知∠A=α∠ACD是△ABC的外角∠ABC的平分线与∠ACD的平分线相交于点A1得∠A1若∠A
1如图1△ABC中作∠ABC∠ACB的平分线相交于点O.过点O.作EF∥BC分别交ABAC于E.F.
如图AC∥BD∠ABD的角平分线与∠BAC的角平分线相交于点E过E的直线与AC相交于点P与BD相交于
如图△ABC中AB=AC∠BAC和∠ACB的平分线相交于点D.∠ADC=130°求∠BAC的度数.
如图△ABC中∠CAB的平分线AD和边BC的垂直平分线ED相交于点D.过点D.作DF垂直于AC交AC
如图在△ABC中已知∠B.和∠C.的平分线相交于点D.过点D.作EF∥BC交AB.AC于点E.F.若
18
17
16
15
如图1在△ABC中∠ABC的平分线BF与∠ACB的平分线CF相交于F过点F作DE∥BC交直线AB于点
BD﹣CE=DE
BD+CE=DE
CE﹣DE=BD
无法判断
如图∠BAC的平分线与BC的垂直平分线相交于点D.DE⊥ABDF⊥AC垂足分别为E.F.AB=6AC
如图△ABC中角平分线ADBECF相交于点H.过H.点作HG⊥AC垂足为G.那么∠AHE=∠CHG为
如图在△ABC中已知∠B.和∠C.的平分线相交于点F.过点F.作DE∥BC交AB于点D.交AC于点E
9
8
7
6
如图∠ABC的平分线BF与△ABC中∠ACB的相邻外角∠ACG的平分线CF相交于点F.过F.作DF∥
1如图1在△ABC中∠ABC的平分线BF交AC于F过点F作DF∥BC求证BD=DF.2如图2在△AB
热门试题
更多
Theconcertcbyafamousmusicianisagreatsuccess.
Thefallingofthenewbuildingitssoftbasecausing1deathandover20injuries. A.resultedin B.sufferedfrom C.ledto D.resultedfrom
Startingyourownbusinesscouldbeawaytoachievingfinancialindependence.itcouldjustputyouindebt. A.Inotherwords B.Allinall C.Asaresult D.Ontheotherhand
Manyyoungpeople'saistostartuptheirownfirms.
0.5分Chinawillbea_____countryinthemiddleofthenextcentury.
0.5分Whichofthefollowingsentencesiswrong
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第11处起不计分. LastMondaymyclassmateandIsawsomepeoplegatheringaroundinourwaytoschool.Inordertoseewhatwashappeningsowegotcloseenoughandfoundanoldwomanlieontheground.Thepeoplearoundherjuststandtherewatchingandchatting.Wewereworriedaboutheranddecidedtotakehertothehospitalimmediate.Itturnedoutthatshelostherbalancebutfell.Shehadtostayinhospitalsowecalledherfamily.Soonhissoncameandthankedusbyofferingusmoney.Werefusedmoneyandleft.Hurriedtoschoolwefoundwewerelate.Toourdelightthoughourteacherpraisedusforthatwehaddoneandwefeltveryproud.
0.5分Mr.Smithaskedtheboyaquestion________hecouldgototheconcertwithhim.
A全国性的goodharvestsoonbroughtdownthepriceofrice.
0.5分Wehavelearnt________twothousandEnglishwords.
hashelpedtoprotecttheenvironmentisworthpraising.A.Who B.Theone C.Anyone D.Whoever
请修改下面的短文.短文中共有10处语言错误每句中最多有两处.错误涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词2.只允许修改10处多者从第11处起不计分. Itiswell﹣knownthatgoodhabitsdousgoodallourlife.EnteredhighschoolItookdelightinhavingfastfoodandofteneattoomuch.IntheendIwassoseriousoverweightthatIsufferedalotfrommyawkwardappearance.Itmademattersworsewasthefactthatmyclassmatesmadeafunofmeattimes.FromnowonImadeupmymindtoavoidingsnacks.InthemeanwhileItookoffjoggingtoloseweight.TomysurpriseitwasnotlonguntilIdidsucceedincreatingmynewappearance.OnlythenIstarttoappreciatetheimportanceofdevelopingagoodhabit.
文中共有10处语言错误每句中最多有两处每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号^并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均限一词. 2.只允许修改10处多者从第11处起不计分. OnerainydaywhileIwaswalkinghomewithoneofmyfriendatruckcametoastopbesidesus.Thedriverputthewindowdownandofferedusaumbrellabecausehefoundwewerewetthrough.Istoodthereandcouldn'tbelieveinthatacompletestrangerissothoughtful.ThemaninsistedsoIgratefulacceptedtheofferthankedhimandwatchedthetruckdisappeardowntheroad.Thismanmightneedtheumbrellahimselfandhepreferredtogiveittoeveryoneelse.Itwasalessontousthatitwaspossiblegivewithoutexpectanythinginreturn.
假设英语课上老师要求同桌之间互换修改作文请修改你同桌的以下作文.文中共有10处语言错误每句中最多有两处每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号^并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均限一词. 2.只允许修改10处多者从第11处起不计分. Lastweekendwegomountainclimbing.Eventheheavyraininthemorningcouldnotpreventusgoing.Setoffveryearlywewentalonganextremenarrowroadallinhighspirits.Oneverysideoftheroadwasgreenfieldsandsomefarmhouses.Wecouldhearthesoundoftherainandourfootstepsmixingwithourlaughter.Atnoonwereachedthetopofthemountain.Thatsurprisedusmosttherewasthebeautyofscenes.Afterhavingshortrestthereandsharingwiththefoodwehadbroughtwestartedgoingdown.Itrainedevenharder.Wewerewettotheskinandwestillsangandlaughedhappily.
Thiswallisawar纪念碑andithasthenamesofeveryonewhodiedinthewar.
10.00分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处错误每句中最多有两处.错误涉及一个单词的增加删除或修改. 删除把多余的词用斜线\划掉. 修改在错的词下画一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第11处起不计分. LiMingwenttotheparkinlastSaturdayafternoonafterhehadalreadyfinishedhishomeworks.Hesawseveralboysskatinginthepondhappily.Suddenlyheheardacryforhelp.Lookedaheadhefoundoneoftheboyshadfellintothewater.LiMingjumpedintotheicywaterimmediatelyandtriedtopulltheboytosafe.Thentheboywasgivenfirstaidbutsooncametomyself.Theboy'sparentscamesoonaftertheyreceivedthephonecall.TheywereverygratefulLiMingwhowastremblingtherewithcold.
MylaptopcomputerIcan'tgoonwithmyworkbrokedowntheotherday. A.which B.that C.withoutwhich D.forwhich
MountVesuviushasn't爆发formanyyears.
Tomarrivedlateandmissedtheassembly.Hethetraffictobesoheavy. A.hadn'texpected B.wouldn'texpect C.haven'texpected D.wasn'texpecting
Thelittleboydoesnothavetheitotellrightfromwrong.
CouldyoutellmehowyouusuallyThanksgivingDayinyourcountry. A.pass B.reach C.congratulate D.observe
Citizenshavefree使用…的机会权利tothelibrary.
0.5分Policehavefound____appearstobethelostancientstatue.
Whatweexpectfromyouisworkinghardhardlyworking. A.lessthan B.ratherthan C.aswellas D.asmuchas
Whendidyoufindthewallet ItwasatnoonIplayedfootballontheplayground. A.that B.when C.then D.which
Moreandmorepeoplerealizetheimportanceofothetrafficrules.
Themaninsistedthathewasiandthathewasasstraightasanarrow.
Christinewasoneofmybestfriendathighschool.Atthattimeweoftenspendtimetogether.ThanksforherhelpImadeagreatprogressinmystudy.Lastyearshedecidedtogoabroadforfartherstudy.Inanotherwordswewouldbeseparatedforalongtimethatmademealittlesad.BeforeherleavingoffIpreparedagifttoshowmybestwishestohim.Shesaiditwasthebestgiftshehaseverhad.Eversincethenwehavekeptintouchwitheachotherthroughemails.Ilookforwardtoseeheragaininthenearfuture.
10.00分假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文. 作文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号并在其下面写出该加的词. 删除把多余的词用\划掉. 修改在错的词下画一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第11处起不计分. I'dliketogiveyousomeadvicesonhowtolearnChinesewell. FirstitwasimportanttotakeaChinesecourseasyou'llbeabletolearnfromtheteacherandpractisingwithyourfellowstudents.ThenitalsohelptowatchTVandreadbooksnewspapersandmagazinesintheChinesewheneverpossible.ItwillmakeyoufamiliartoChinesecharactersandenlargeyourvocabularyevenbeforeyounoticeit! BesidesitisagoodidealearnandsingChinesesongsbecausebydoingsoyou'lllearnandrememberChinesewordsmoreeasy.YoucanalsomakemoreChinesefriendstheywilltellyoualotaboutChinaandhelpyoulearnChinese.TrytospeakChineseasmanyaspossible.
Althoughheis较年幼的tomeIlikestayingwithhim.
热门题库
更多
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
教案备课库
高一上学期物理
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库