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安徽省2024-2025学年九年级开学考试题(数学)试卷答案
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Essays(60%)YourfourmjoressayswilloothemainparegradeforhsEssay1=10%;Essay2=15%;Essay3=15%;Essay4=20%.GroupAssignments(30%)Studentswillworkingroupstocompletefourassignments()duringthecourse.AlltheassignmentswillbesubmittedbytheassigneddatethroughBlackboard,ouroninelearningandcoursemanagementsystem.DailyWorth/In-ClassWritingandTests/GroupWork/Homework(10%)Classactivitieswillvaryfromdaytoday,butstudentsmustbereadytocompleteshortin-classwritingsortestsdrawndirectlyfromassignedreadingsornotesfromthepreviousclass'slecture/discussion,soitisimportanttotakecarefulnotesduringclass.Additionally,fromtimetotimeIwillassigngroupworktobecompletedinclassorshortassignmentstobecompletedathome,bothofwhichwillbegraded.LateWorkAnessaynotsubmittedinclassontheduedatewilllosealettergradeforeachclassperiod.Ifitisnotturnedinbythe4thdayaftertheduedate,itwillearnazero.Dailyassignmentsnotcompletedduringclasswillgetazero.Shortwritingsmissedasaresultofanexcusedabsencewillbeaccepted.21.Whichaccountsforthemainpartofastudent'sfinalgrade?A.Essays.B.Homework.C.GroupAssignments.D.In-ClassWritingandTests22.Whatdoesastudenthavetofocuson?A.Completingshortassignments.B.Reviewingpreviouslectures.C.Participatingingroupwork.D.Takingcarefulnotes23.Whichcolumnofthewebsitecanyoureadthistext?A.Culture.B.Advertisement.C.Education.D.NewsBMost5-year-oldsarejustlearningtheirABC's.KindergartenersarejustlearningtoreadandwritebutonelittlegirlfromtheUKhasactuallywrittenabookthatwaspublishedinJanuary2022.Bella-JayDarkfromWeymouth,istheworld'syoungestfemaletobepublishedandwasawardedthetitlebyGuinnessWorldRecords.Herbook,TheLostCattellsthestoryofSnowy,acatwhogotlostaftergoingoutsidealoneatnight.Shehopesthebookwillteachchildrennottogooutsideatnightalone.ThebookwaspublishedbyGingerFyrePressandhassoldover1,000copies.Whilemanyadultwritersfindinspirationfortheirbooksfromlifeexperiences,Bella'screativevisionactuallycamefromoneofherdrawings.Bella'sdecidingtowriteabookwasn'tmuchasurprisetohermomChelsieSymewhosaidthatherdaughterhasbeenwritingshortstoriessinceagethree.BellaspentaroundfivedayswritingthestoryanddidalloftheillustrationsexceptforonepicturethatheroldersisterLacie-Maydrew.Symewassurprisedthatthebookturnedoutaswellasitdid.Buthowdoyougetachild'shomemadebookpublished?SymeandherhusbandtookBella'sbooktoabookfairandfoundapublisherwillingtotakeachanceonit.SymehelpedBellawithproofingcopiesandmakingnecessarychanges.-0a8-08A001高三英语试题第3页共8页生活原WHATYOURHEIRTWAN但跑起来就有
分析根据题意，得出长方体内接于球，球的直径等于长方体的对角线长，由此求出球的半径与体积．
解答解：根据题意，长方体内接于球，
所以球的直径为该长方体的对角线；
即（2R）2=32+${（\sqrt{11}）}^{2}$+42=36，解得R=3；
所以这个球的体积为V球=$\frac{4}{3}$πR3=$\frac{4}{3}$×π×33=36π．
故选：D．
点评本题考查了球的内接长方体以及球的体积的应用问题，也考查了空间想象能力，是基础题．
