首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
如图一带电小球用丝线悬挂在水平方向的匀强电场中，当小球静止后把悬线烧断，则小球在电场中做（ ）
查看本题答案
包含此试题的试卷
高一下学期物理《》真题及答案
点击查看
你可能感兴趣的试题
如图所示质量为m的小球用绝缘细线悬挂在O.点放在匀强电场中在图示位置处于平衡状态.匀强电场场强的大小
如图所示质量为m的小球用绝缘细线悬挂在O.点处于匀强电场中在图示位置处于平衡状态匀强电场场强的大小为
如图所示一带电小球的质量m=2×10﹣4kg用长为L=0.8m的细线悬挂在水平方向的匀强电场中O.点
一个质量m=1.5×10﹣5kg电荷量q=﹣1.73×10﹣8C.的小球用细丝线悬挂在水平方向匀强电
如图3所示一带电小球用丝线悬挂在水平方向的匀强电场中当小球静止后把悬线烧断则小球在电场中将作
自由落体运动
曲线运动
沿着悬线的延长线作匀加速运动
变加速直线运动
一个带电小球用细线悬挂在水平方向的匀强电场中当小球静止后把细线烧断则小球离开电场前
做自由落体运动
做匀加速直线运动
做变加速直线运动
做曲线运动
一个带电小球用细绳悬挂在水平方向的匀强电场中当小球静止后把悬绳烧断小球将沿方向做运动
如图所示一个质量m=30g带电量为q=-1.7×10-8C的半径极小的小球用丝线悬挂在某匀强电场中电
如图所示质量为m的电量为+q的小球A.悬挂在绝缘细线上且处在一水平方向的匀强电场中当小球A.静止时细
如图所示一个质量m带电量为－q半径极小的小球用丝线悬挂在某匀强电场中电场线与水平面平行当小球静止时测
一个质量为m带电量为-q的半径极小的小球用绝缘丝线悬挂在某个水平匀强电场中电场线与水平面平行当小球静
如图所示一质量为m的带电小球用绝缘细线悬挂在水平向右的匀强电场中静止时悬线与竖直方向成θ角.1判断小
如图所示质量为m的带电小球用绝缘丝线悬挂于O.点并处在水平向左的匀强电场E.中小球静止时丝线与竖直方
)O. (
)g，方向竖直向下(
)gtanθ，水平向右 (
)g/cosθ，沿绳向下
质量m=0.03kg带电荷量为q=－1.73×10-8C的半径极小的小球用丝线悬挂在某匀强电场中电场
一个带电小球用细绳悬挂在与水平方向成30°角斜向下的匀强电场中当小球静止后把悬线烧断小球将做
自由落体运动
变加速曲线运动
沿悬线的延长线做匀加速直线运动
类平抛运动
用细线将一质量为m电荷量为q的小球悬挂在天花板下面设在空中存在沿水平方向的匀强电场当小球静止时把细线
沿电场线方向的匀加速直线运动
沿重力方向的自由落体运动
沿悬线的延长线方向的匀加速直线运动
类似平抛运动的匀加速曲线运动
如图A-4所示一个质量为30g带电量为-1.7×10-8C.的半径极小的小球用丝线悬挂在某匀强电场中
如图A-7所示质量为m的小球用绝缘细线悬挂在O点放在匀强电场中在图示位置处于平衡状态匀强电场场强的大
悬挂在O.点的一根不可伸长的绝缘细线下端有一个质量为m带电量为-q的小球若在空间加一水平方向的匀强电
如图在一个分布范围足够大的水平向右的匀强电场中用长为L.的绝缘轻质细丝线把一个带电小球悬挂在O.点小
热门试题
更多
则==
15分Theadobedwellings土坯房61buildbythePuebloIndiansoftheAmericanSouthwestareadmiredbyeven62mostmodernofarchitectsandengineers.Inadditiontotheirsimplebeautywhatmakestheadobedwellingsadmirableistheir63abletoairconditionahousewithout64useelectricequipment.Wallsmadeofadobetakeintheheatfromthesunonhotdaysandgiveoutthatheat65slowduringcoolnightsthuswarningthehouse.Whenanewdaybreaksthewallshavegivenuptheirheatandarenowcoldenough66coolthehouseduringthehotday67thesametimetheywarmupagainforthenightThiscycle68godayafterdayThewallswarmupduringthedayandcooloffduringthenightandthusalwaysatimelyoffset抵消fortheoutsidetemperatures.As69naturearchitectsthePuebloIndiansfiguredoutexactly70thicktheadobewallsneededtobetomakethecycleworkonmostdays. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70.
如图直线l1∥l2直线l3与l1l2分别交于点ACCB⊥l3交l1于点B若∠1＝70°则∠2的度数为
已知实数xyz满足x+y+z=03x-y+2z=0则xyz=
董永社区在创建全国卫生城市的活动中随机检查了本社区部分住户五月份某周内垃圾分类的实施情况将他们一周内实施垃圾分类的户数等数据绘制了两幅不完全的统计图A．小于5天B．5天C．6天D．7天则扇形统计图中B部分所对应的圆心角的度数是
8分Yourhousemayhaveaneffectonyourfigure.Expertssaythewayyoudesignyourhomecouldplayaroleinwhetheryoupackonthepoundsorkeepthemoff.Youcanmakeyourenvironmentworkforyouinsteadofagainstyou.Herearesomewaystoturnyourhomeintopartofdietplan. Openthecurtainsandturnupthelights.Darkenvironmentsaremorelikelytoencourageovereatingforpeopleareoftenlessself﹣consciouswhenthey'reinpoorlylitplaces﹣andsomorelikelytoeatlotsoffood.Ifyourhomedoesn'thaveenoughwindowlightgetmorelampsandfloodtheplacewithbrightness. Mindthecolors.Researchsuggestswarmcolorsfuelourappetites胃口.Inonestudypeoplewhoatemealsinablueroomconsumed消耗33percentlessthanthoseinayelloworredroom.Warmcolorslikeyellowmakefoodappearmoreappetizingwhilecoldcolorsmakeusfeellesshungry.Sowhenit'stimetorepaintgoblue. Don'tforgettheclock﹣﹣﹣ortheradio.Peoplewhoeatslowlytendtoconsumeabout70fewercalories卡路里permealthanthosewhorushthroughtheirmeals.Beginkeepingtrackofthetimeandtrytomakedinnerlastatleast30minutes.Andwhileyou'reatitactuallysitdowntoeat.Ifyouneedsomehelpslowingdownturnonrelaxingmusic.Itmakesyoulesslikelytorushthroughameal. Downsizethedishes.Bigservingbowlsandplatescaneasilymakeusfat.Weeatabout22percentmorewhenusinga12﹣inchplateinsteadofa10﹣inchplate.Whenwechoosealargespoonoverasmalleronetotalintake摄入jumpsby14percent.Andwe'llpourabout30percentmoreliquidintoashortwideglassthanatallskinnyglass. 1.Thetextisespeciallyhelpfulforthosewhocareabout. A.theirhomecomforts B.theirbodyshape C.housebuying D.healthydiets 2.Ahomeenvironmentinbluecanhelppeople. A.digestfoodbetter B.regaintheirappetites C.burnmorecalories D.reducefoodintake 3.Whatarepeopleadvisedtodoatmealtimes A.Fatquickly. B.Playfastmusic. C.Usesmallerspoons. D.Turndownthelights. 4.Whatcanbeasuitabletitleforthetest A.IsYourHouseMakingYouFat B.WaysofServingDinner C.EffectsofSelf﹣Consciousness D.IsYourHomeEnvironmentRelaxing
下列说法错误的是
如图Rt△ABC中∠ACB＝90°一同学利用直尺和圆规完成如下操作①以点C为圆心以CB为半径画弧交AB于点G分别以点GB为圆心以大于GB的长为半径画弧两弧交点K作射线CK②以点B为圆心以适当的长为半径画弧交BC于点M交AB的延长线于点N分别以点MN为圆心以大于MN的长为半径画弧两弧交于点P作直线BP交AC的延长线于点D交射线CK于点E．请你观察图形根据操作结果解答下列问题1线段CD与CE的大小关系是2过点D作DF⊥AB交AB的延长线于点F若AC＝12BC＝5求tan∠DBF的值．
已知求的值．
查阅资料知Br2的沸点为58.78℃密度为3.119g•cm﹣3微溶于水有毒． Ⅰ．常温下单质溴通常是液态保存时通常在盛溴的试剂瓶中加入少量水．工业生产中海水提溴常用空气吹出法．其生产流程可用下图表示 淡化海水低浓度Br2水通入Cl2含Br﹣的溶液通入空气吹出Br2Br2的浓溶液用X吸收再通入Cl2得到液溴 某化学实验小组模拟该法设计了如图1实验装置夹持装置略去从浓缩的海水中提取溴． 实验步骤如下 ①关闭活塞bd打开活塞ac向A中缓慢通入Cl2至反应结束 ②关闭ac打开活塞bd向A中鼓入足量热空气 ③关闭b打开a再通过A向B中通入足量Cl2 ④将B中所得液体进行蒸馏收集液溴． 1当观察到A中液面上方出现实验现象即可判断步骤①中反应已经结束． 2X试剂可以是填序号尾气处理选用填序号． a．H2Ob．饱和食盐水c．氢氧化钠溶液d．饱和Na2SO3液 3B中X试剂发生反应的离子方程式为． 4蒸馏时应该选择操作中应控制的关键实验条件为． Ⅱ．该实验小组利用制得的单质溴研究H2与Br2生成HBr的反应实验装置如3 5E装置可用来检验反应产物HBr则D装置的作用是．若要检验E中收集的HBr图示装置检验HBr时还不够完善请结合原有实验装置予以改进．
6分ChooseYourOne﹣DayTours TourA﹣Bath&StonchengeincludingentrancefeestotheancientRomanbathroomsandStonehenge﹣￡until26Marchand￡39thereafter. Visitthecitywithover2000yearsofhistoryandBathAbbeytheRoyalCrescentandtheCostumeMuseum.Stonehengeisoneoftheworld'smostfamousprehistoricmonumentsdatingbackover5000years. TourB﹣Oxford&StratfordincludingentrancefeestotheUniversityStMary'sChurchTowerandAnneHathaway'shouse一32until12Marchand36thereafter. OxfordIncludesaguidedofEngland'soldestuniversitycityandcolleges.Lookoverthecityofdreamingspires尖顶formStMary'sChurchTower.StratfordIncludesaguidedtourexploringmuchoftheShakespearewonder. TourC﹣WindsorCastle&HamptonCourtincludingentrancefeestoHamptonCourtPalace﹣﹣£34untilMarchand£37thereafter. IncludesaguidedtourofWindsorandHamptonCourtHenryMill'sfavouritepalace.FreetimetovisitWindsorCastleentrancefeesnotincluded.With500yearsofhistoryHamptonCourtwasoncethehomeoffourKingsandoneQueen.Nowthisformerroyalpalaceisopentothepublicasamajortouristattraction.Visitthepalaceanditsvarioushistoricgardenswhichincludethefamousmaze迷宫whereitiseasytogetlost! TourD﹣CambridgeincludingentrancefeestotheTowerofSaintMarytheGreat﹣£33.until18Marchand£37thereafter. IncludesaguidedtourofCambridgethefamousuniversitytownandthegardensofthe18thcentury. 33.WhichtourwillyouchooseifyouwanttoseeEngland'soldestuniversitycity A.TourAB.TourBC.TourCD.TourD 34.Whichofthefollowingtourschargesthelowestfeeon17March A.WindsorCastle&HamptonCourt. B.Oxford&Stratford C.Bath&Stonehenge. D.Cambridge. 35.WhyisHamptonCourtamajortouristattraction A.Itusedtobethehomeofroyalfamilies. B.Itusedtobeawell﹣knownmaze C.ItistheoldestpalaceinBritain D.Itisaworld﹣famouscastle.
下列说法正确的是
关于石灰石相关的一些问题请按要求回答 1向漂白粉溶液中通入过量的二氧化碳后在300℃灼烧至固体质量不再变化最终所得固体为填名称 2一定温度下某真空密闭容器中投入碳酸钙发生反应CaCO3sa＝CaOs+CO2g达到平衡后现将体积缩小为原来的一半当体系再次达到平衡时CO2的浓度为 A．不变B．减小C．增大为原来的2倍D．比原来大但比2倍小 3某种胃药中止酸剂为CaCO3．为测定其中CaCO3含量某研究小组设计以下两种方案药片中的其它成分与HCl和NaOH溶液均不反应． 方案一用如图1装置测量一定量样品与足量稀盐酸反应生成CO2的体积计算CaCO3的含量装置中连通管X的作用是平衡分液漏斗与样品瓶内的压强使液体能顺利留下另一作用为． 方案二用滴定法测定操作步骤为 A．配制0.100mol/LHCl溶液与0.100mol/LaOH溶液 B．取一粒药片0.100g研碎后加入20.0mL蒸馏水 C．用酸式滴定管加入25.00mL0.100mol/LHCl溶液充分反应 D．以酚酞为指示剂用0.100mol/LNaOH溶液滴定用去体积为VmL达到终点 4现需要重复滴定4次配制0.1mol/LHCl溶液需要选用如图2所示仪器中的填字母． 5经测定每次消耗NaOH溶液体积的平均值为13.00mL则该胃药中CaCO3的质量分数为．
8分Morestudentsthaneverbeforearetakingagap﹣year间隔年beforegoingtouniversity.Itusedtobecalledtheyearoffbetweenschoolanduniversity.Thegap﹣yearphenomenonoriginated起源withthemonthsleftovertoOxbridgeapplicantsbetweenentranceexamsinNovemberandthestartofthenextacademicyear. Thisyear25310studentswhohaveacceptedplacesinhighereducationinstitutionshaveputofftheirentryuntilnextyearaccordingtostatisticsonuniversityentranceprovidedbyUniversityandCollegeAdmissionsSerbiceUCAS. Thatisarecord14.7%increaseinthenumberofstudentstakingagapyear.TonyHigginsfromUCASsaidthatthestatisticsaregoodnewsforeveryoneinhighereducation.Studentswhotakeawell﹣plannedyearoutaremorelikelytobesatisfiedwithandcompletetheirchosencourse.Studentswhotakeagapyearareoftenmorematureandresponsiblehesaid. Butnoteveryoneishappy.OwainJamesthepresidentoftheNationalUnionofStudentsNUSarguedthattheincreaseisevidenceofstudenthadship﹣youngpeoplearebeingforcedintoearningmoneybeforefinishingtheireducation.Newstudentsarenowawarethattheyarelikelytoleaveuniversityupto￡15000indebt.Itisnotsurprisingthatmoreandmorestudentsaretakingagapyeartoearnmoneytosupporttheirstudyforthedegree.NUSstatisticsshowthatover40%ofstudentsareforcedtoworkduringtermtimeandthefigureincreasesto90%duringvacationperiodshesaid. 29.Whatdowelearnaboutthegapyearfromthetext A.Itisflexibleinlength. B.Itisatimeforrelaxation. C.Itisincreasinglypopular. D.Itisrequiredbyuniversities. 30.AccordingtoTonyHigginsstudentstakingagapyear. A.arcbetterpreparedforcollegestudies B.knowalotmoreabouttheirfuturejobs C.aremorelikelytoleaveuniversityindebt D.haveabetterchancetoentertopuniversities 31.HowdoesOwainJamesfeelaboutthegap﹣yearphenomenon A.He'spuzzled. B.He'sworried. C.He'ssurprised. D.He'sannoyed. 32.WhatwouldmoststudentsdoontheirvacationaccordingtoNUSstatistics A.Attendadditionalcourses. B.Makeplansforthenewterm. C.Earnmoneyfortheireducation. D.Preparefortheirgraduatestudies.
如果a=15cmb=10cm且b是a和c的比例中项则c=．
10分Trainingforamarathonrequirescarefulpreparationandsteadygradualincreasesinthelengthoftheruns.36buythebest﹣fittingbest﹣builtrunningshoesyoucanfind.Noonecansaywhichbrandwillworkbestforyouorfeelbestonyourfeetsoyouhavetorelyonyourexperienceandonthefeelofeachpairasyoushop.Whenyouhavefoundshoesthatseemrightwalkinthemforafewdaystodouble﹣checkthefit.37.Asalwaysyoushouldstretch伸展atleasttenminutesbeforeeachruntopreventinjuries. Duringthefirstweekdonotthinkaboutdistancebutrunfiveminuteslongereachday.38itiswisetotakeadayofftorest.Butduringthenextweeksetagoalofatleastamileandahalfperrun.39.Aftertwoweeksstarttimingyourself.40.Dependingonthekindofraceyouplantoenteryoucansetupatimetablefortheremainingweeksbeforetherace. A.Aftersixdays B.Foragoodmarathonrunner C.Beforeyoubeginyourtraining D.Witheachdayincreasethedistancebyahalfmile E.Iftheystillfeelgoodyoucanbeginrunninginthem F.Timespentforpreparationraisesthequalityoftraining G.Nowyouarereadytofigureoutagoalofimprovingdistanceandtime. 36. 37. 38. 39. 40.
如图1在平面直角坐标系xOy中已知抛物线y＝ax2﹣2ax﹣8a与x轴相交于AB两点点A在点B的左侧与y轴交于点C0﹣4． 1点A的坐标为点B的坐标为线段AC的长为抛物线的解析式为 2点P是线段BC下方抛物线上的一个动点． ①如果在x轴上存在点Q使得以点BCPQ为顶点的四边形是平行四边形．求点Q的坐标． ②如图2过点P作PE∥CA交线段BC于点E过点P作直线x＝t交BC于点F交x轴于点G记PE＝f求f关于t的函数解析式当t取m和4﹣m0＜m＜2时试比较f的对应函数值f1和f2的大小．
为加快“智慧校园”建设某市准备为试点学校采购一批AB两种型号的一体机．经过市场调查发现今年每套B型一体机的价格比每套A型一体机的价格多0.6万元且用960万元恰好能购买500套A型一体机和200套B型一体机． 1求今年每套A型B型一体机的价格各是多少万元 2该市明年计划采购A型B型一体机共1100套考虑物价因素预计明年每套A型一体机的价格比今年上涨25%每套B型一体机的价格不变若购买B型一体机的总费用不低于购买A型一体机的总费用那么该市明年至少需要投入多少万元才能完成采购计划
25分假定你是李华计划和同学去敬老院nursinghome陪老人们过重阳节theDoubleNinthFestival.请给外教露西写封邮件邀她一同前往内容包括 1.出发及返回时间 2.活动包饺子表演节目等. 注意1.词数100词左右 2.可以适当增加细节以使行文连贯 3.结语已为你写好. Lookingforwardtoyourreply. Yours LiHua.
如图在平面直角坐标系中将点P23绕原点O顺时针旋转90°得到点P'则点P'的坐标为
方程＝的解为
如图正方形ABCD中点EF分别在边CDAD上BE与CF交于点G．若BC＝4DE＝AF＝1则GF的长为
如图双曲线y＝x＞0经过矩形OABC的顶点B双曲线y＝x＞0交ABBC于点EF且与矩形的对角线OB交于点D连接EF．若ODOB＝23则△BEF的面积为
设NA为阿伏加德罗常数的值下列叙述正确的是
10分假如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.错误涉及单词的增加删除或修改. 增加在缺词处加一个漏词符号∧并在此符号下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错词下面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. OnedaylittleTonywenttoashoppingcenterwithhisparent.Itwasverycrowded.Tonysawatoyonashopwindow.Helikeditsoverymuchthathequicklywalkedintotheshop.Afterlooksatthetoyforsometimeheturnedaroundandfoundwherehisparentsweremissing.Tonywasscaredandbeguntocry.Awomansawhimcryingandtellinghimtowaitoutsideashop.Fiveminuteslater.Tonysawparents.MomsaidHownicetoseeyouagain!DadandIwereterribleworried.Tonypromisedherthatthiswouldneverhappenagain.
公元前3世纪古希腊科学家阿基米德发现了杠杆平衡后来人们把它归纳为“杠杆原理”即阻力×阻力臂＝动力×动力臂．小伟欲用撬棍撬动一块石头已知阻力和阻力臂分别是1200N和0.5m则动力F单位N关于动力臂l单位m的函数解析式正确的是
下列图示与对应的叙述相符的是
30分WheredoyougowhenyouwanttolearnsomethingAfriendAtutorTheseareall41acesoflearning.Butitmaywellbethatthelearningyoureallywant42somewhereelseinstead.Ihadthe43ofseeingthisfirsthandona44. Mydaughterplaysonarecreationalsoccerteam.Theydidverywellthisseasonandso45atournamentwhichnormallywasonlyformoreskilledclubteams.Thisledtosome46experiencesonSaturdayastheyplayedagainstteams47trained.Throughthefirsttwogamesher48didnotgetonseriousshotongoal.AsapparentI49seeingmydaughterplayingherbest50stilldefeated. ITseemedthatsomethingclickedwiththe51betweenSaturdayandSunday.Whenthey52fortheirSundaygametheywere53different.Theyhadbegunintegrate融合thekindsofplayandteamworktheyhad54thedaybeforeintotheir55.Theyplayedaggressivelyand56scoredagoal. It57methatplayingagainsttheotherteamwasagreat58momentforallthegirlsontheteam.Ithinkitisageneralprinciple.59isthebestteacher.Thelessonstheymaynotbe60whattheywouldhavegotteninschool.Butarecertainlymorepersonalandmeaningfulbecausetheyhadtoworkthemoutontheirown. 41.A.public B.traditional C.official D.special 42.A.passes B.works C.lies D.ends 43.A.dream B.idea C.habit D.chance 44.A.trip B.holiday C.weekend D.square 45.A.won B.entered C.organized D.watched 46.A.painful B.strange C.common D.practical 47.A.less B.poorly C.newly D.better 48.A.fans B.tutors C.class D.team 49.A.imagined B.hated C.avoided D.missed 50.A.if B.or C.but D.as 51.A.girls B.parents C.coaches D.viewers 52.A.dressed B.showedup C.madeup D.planned 53.A.slightly B.hardly C.basically D.completely 54.A.seen B.known C.heard D.read 55.A.styles B.training C.game D.rules 56.A.even B.still C.seldom D.again 57.A.confused B.struck C.reminded D.warned 58.A.touching B.thinking C.encouraging D.learning 59.A.Experience B.Independence C.Curiosity D.Interest 60.A.harmfulto B.mixedwith C.differentfrom D.appliedto.
8分Mycolortelevisionhasgivenmenothingbutaheadache.IwasabletobuyitalittleoverayearagobecauseIhadmyrelativesgivememoneyformybirthdayinsteadofalotofclothesthatwouldn'tfit.IletasalesclerkfoolmeintobuyingadiscontinuedmodelIrealizedthisadaylatewhenIsawnewspaperadvertisementsforthesetatseventy﹣fivedollarslessthanIhadpaidThesetworkedsobeautifullywhenIfirstgotithomethatIwouldkeepitonuntilstationssignedoffforthenightFortunatelyIdidn'tgotanychannelsshowingall﹣nightmoviesorIwouldneverhavegottentobed. ThenIstarteddevelopingaproblemwiththesetthatinvolvedstatic静电noise.Forsomereasonwhencertainshowsswitchedintoacommercialaloudnoisewouldsoundforafewseconds.GraduallythisnoisebegantoappearduringashowandtogetridofitIhadtochangetoanotherchannelandthenchangeitback.SometimesthistechniquewouldnotworkandIhadtopickupthesetandshakeittoremovethesound.Iactuallybegantobuildupmyarmmuscles肌肉shakingmyset. WhenneitherofthesemethodsremovedthestaticnoiseIwouldsithelplesslyandwaitforthenoisetogoaway.AtlastIendeduphittingthesetwithmyfistanditstoppedworkingaltogether.Mytriptotherepairshopcostme$62andthesetisworkingwellnowbutIkeepexpectingmoretrouble. 21.WhydidtheauthorsayhewasfooledintobuyingtheTVset A.Hegotanoldermodelthanhehadexpected. B.Hecouldn'treturnitwhenitwasbroken. C.Hecouldhaveboughtitatalowerprice. D.Hefailedtofindanymovieshowsonit. 22.WhichofthefollowingcanbestreplacethephrasesignedoffinParagraph1 A.endedalltheirprograms B.providedfewerchannels C.changedtocommercials D.showedall﹣nightmovies 23.HowdidtheauthorfinallygethisTVsetworkingagain A.Byshakingandhittingit. B.Byturningitonandoff. C.Byswitchingchannels. D.Byhavingitrepaired. 24.Howdoestheauthorsoundwhentellingthestory A.Curious B.Anxious C.Cautious D.Humorous.
如图已知∠C＝∠D＝90°BC与AD交于点EAC＝BD求证AE＝BE．
热门题库
更多
高三下学期数学
高三上学期数学
高一下学期英语
教案备课库
高一上学期生物
高一下学期生物
高二上学期数学
高二上学期物理
高二上学期英语
高二上学期生物
高二下学期数学
高二上学期化学
高二下学期物理
高三下学期物理
高三上学期物理
高三上学期生物
湘公网安备 43130202000226号