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安徽省铜陵市铜官区2024年初一新生入学阳光分班素质测试试题(数学)试卷答案
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Hallowcenisfun.Butmaybenotforparentswhohavetotaketheirkidstoseeyouaftertheyeattoomuchcandy.Andyoumaynotwanttoseeahouseofkidscryingandkicking,either.Here'sawaytohelpparentsandsaveyoufromadayofheadache-joinSoldierVoice'sHalloweenCandyBuyBackplan!Whatwillyoudo?Invitekidstobringyoutheircandyfromtrick-or-treat.PaythemUS$Iforeverykilogramofcandy.SendthecandyyoucollecttoSoldierVoicebyNovember10.WhatwillSoldierVoicedo?Sendthecandytooursoldierswhoareservinginfarawayplaces.What'sthegoodofdoingit?You'llhavefewercrazykidstotakecareof.Parentswillknowyoucareabouttheirkids.Soldierswillknowwestillrememberthem.Youwillbebetterknowninthecountry.Morethan2,000dentistsacrossthecountryhavejoined!Callnowat1234-5678.21.Whowillgetthecollectedcandies?A.Theparents.B.Thekids.C.Thesoldiers.D.Thedentists.22.WhatdoweknowaboutHalloweenCandyBuyBackfromthisposter?A.Kidscanmakemoneyfromit.B.ItstartsonNovember10thisyear.C.Itplanstoget2,000dentiststojoinin.D.Kidscanmeetsoldiersafterjoiningit.23.Howcanwejointheplan?A.Bywritingaletter.B.BysendinganEmail.C.Bytalkingfacetoface.D.Bymakingaphonecall.BAsateacher,ithasbeenmygoaltoteachmystudentstobecomeactiveandresponsiblemembersinthecommunity,thenation,andtheworld.Overtheyears,mystudentshavemadegreatdifferencesinourcommunity,butsavingliveswasnotreallypartofourplanInaJanuary,thestudentsaskedwhyIwasupset,soIsadlytoldthemthestory.Ayoungmaninmyneighborhoodhithisheadwhileiceskating.Althoughsenttothehospitalatonce,hediedafewdayslater.
8.云室能显示射线的径迹,把云室放在磁场中,从带电粒子运动轨迹的弯曲方向和半径大小就能判断粒子的属性。天然放射性元素A的原子核静止放在匀强磁场中发生衰变,放射出粒子B并变成新原子核C,放射出的粒子与新核运动轨迹如图所示。下列说法正确的是A.原子核衰变后,粒子B和新原子核C运动方向相同B.放射性元素A原子核发生的是α衰变C.磁场方向一定垂直纸面向外D.新原子核C在匀强磁场中运动的轨迹半径为R2
