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江西省2024届九年级第七次月考（长）数学.考卷答案试卷答案
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won'tgetthesupportofmycountry.Whydoyouseemsocalm?M:Thisclassisreallyjustareviewforme.I'vebeenlearningitfortwoyears.W:That'sluckyforyou.(Text9)M:Hello.ThisisJamesGoodfellowfromChannel4News.Today,weareinterviewingSarahRoberts,thestarofthenewmovie,ZombiesonMarsPart4.Sarah,thanksforjoiningus.W:You'rewelcome,James.M:Well,let'sstartofftheinterviewwithafewbasicquestions.Firstofall,whereareyoufrom?W:Well,I'moriginallyfromMiami,butwemovedtoNewYorkwhenIwasthreeyearsold.IlivedthereuntilIwas17,andthenImovedtoLosAngelestobeanactress.M:Okay,andwheredidyougotocollege?W:IattendedFernando'sSchoolofActing.M:Wouldyoupleasetellourlistenerswhomostinfluencedyourdecisiontobeanactress?W:Allofmyteachershadgreatinfluenceonmydecision.Butmostimportantly,myparents.Insteadoftryingtopickoutajobforme,theyjusttoldmetofollowmyheart.(Text10)M:Hi,students!ThisisAshleyJacobs,yourstudentgovernmentpresident.Ihavesomeimportantinformationforeveryoneaboutactivitiesoncampusthisyear.Ipromisethattherewillbesomethingfunforeveryonetodo.Doyoulikesports?Iknoweveryoneisafanofourfootballteam.Andnowtherearetwonewteamsatschoolthisyear.Wehaveaddedabase-ballteamandaswimteam.Ordoyouenjoycreativeactivities?Studentgovernmentcreatedanartclubandamusicclubforpeoplewithartisticabilities.Bothofthesegroupshaveeventsallyearlong.Theartclubhostspaintingnightsandtripstothelocalmuseum,andthemusicclubgoestoseeshowsattheconcerthall.Anddon'tforgetabouttheschoolnewspaperforallthewritersoutthere!Wepassoutthepapereveryweekforfreeoncampus.ReadittokeepupwithalloftheschoolnewsandactivitiesthatIannounced.Istronglysuggestthatyoujoinastudentorganization.Itisaneasywaytomakegoodfriendsandhavefun.Pleaseconsiderjoiningoneofthesegroupstoday.·35【23新教材·DY·英语·参考答案一R一必修第二册一N】
9.如图所示,在坐标系xOy的y轴右侧存在有理想边界的匀强磁场,磁感应强度大小为B,磁场的宽度为d,,磁场方向垂直于xOy平面向里。一个质量为m、、电荷量为-q(q>0)的带电粒子,从原点O射入磁场,速度方向与x轴正方向成30^角,粒子恰好不从右边界射出,经磁场偏转后从y轴上的某点离开磁场。忽略粒子重力。关于该粒子在磁场中的运动情况,下列说法正确的是A.它的轨道半径为23dB.它进入磁场时的速度为2qBd3mC.它在磁场中运动的时间为2m3qBD.它的运动轨迹与y轴交点的纵坐标为3d
