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江西省赣州市2024-2025学年上学期九年级开学考试(物理)试卷答案试卷答案
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34.WhatcanbeinferredfromDominicKing'swords?A.TheAImodelhasnodelayinthedetectionofbreastcancer.B.TheAImodelcanbeofgreathelpindiagnosingbreastcancer.C.Thetechnologywillcquippatientswithmoreexpertknowledge.D.Breastcancerscanbedefinitclycuredifidentifiedearlyenough35.Whichisthemainideaofthetext?A.Acureforbreastcancerhasbeenconfirmed.B.AbreakthroughinAItechnologyhasbeenmade.C.ResearcherstrainedanAImodeltohelpdetectbreastcancer.D.Acomputerprogramavoidserrorsinidentifyingbreastcancer.第二节（共5小题：每小题2.5分，满分12.5分）阅读下面短文，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项
Publicspeakingundoesthebestofus.Thereisfearthat,ifyoufailtoprepareadequately,36_.Fumbles(笨嘴拙舌讲话)likethesecancostyouthatdesiredpromotionoraprofitablenewpartnership.It'snotalwaysfair,butpeoplearejudgedontheirpublic-speakingskills.Thegoodnews,however,isthatimprovementispossible.Belowareafewbasictips.Languageisthemajorcomponentaspeakerneedstofocuson.37.Say"use"insteadof“utilize”,and“detailed”insteadof“granular'”.Trynottorefertoyourgrowthplanasa“globalrecoveryplan".Languagecanperformitseffectivenessbythespeakerrestatingmainpoints,providingaspecialmessageorencouragingaudiencetoaskquestions.38.Goodonesinvolveopenpalms,joinedfingertips,orspreadarms.Whilelistening,audiencehaveatendencytopositionthemselvesintothesituationcreated.39Theycouldbeenjoyableordefeatedones.Forinstance,tellyourlistenersaboutatimeyougotitwrong.Letthemlearnfromyourmistakes.40.Adoptingpictures,diagramsorcatalogues(canhelpmakeyourpresentationimpressive.Includeabriefclipfromawell-knownmovietoentertainyouraudienceanddrivethepointhome.Butbearinmind-don'tletthemdistractfromyou.A.ItisexpectedtobesimpleB.EnhancetheentertainmentpartC.VisualelementsareahugehelpD.youcouldfindyourselfatalossforwordsE.Aspeakerneedstooffercommonexperiencestostimulateempathy(F.Asidefromit,non-verballanguageissignificantinmakingyourspeechsufficientG.youraudiencewon'tforgettheinappropriateremarksandyourteam'sreputationwillberuined英语试题第6页（共12页）
2.如图所示,a、b、c为电场中同一条电场线上的三点,其中c为a、b连线的中点。若一个运动的正电荷只在静电力作用下先后经过a、c、b三点,其中a、b两点的电势分别为a=-5V=5V,则下列说法正确的是A.a点的电场强度一定等于b点的电场强度B.c点电势c=0电荷在a点的动能小于在b点的动能D.正电荷在a点的电势能小于在b点的电势能b
(2)用多用电表欧姆挡的“1k^3”倍率,对玻璃管中水的电阻进行测量,结果如图4所示.则多用电表测得的电阻值约为kkΩ;请在答题纸中根据该实物图②在闭合开关之前,应把滑③实验时电流表采用的3kΩ,的量程如下:阻约为3k0,闭合开关后调U/VI/uA④实验小组根测得数损表测量值相差极大.试改进措施为
1.2023年8月24日,日本政府启动了福岛核污染水排海计划.核污染水中含有60余种放射性物质,这将对全球海洋环境和人类健康造成难以估量的影响.关于放射性元素的半衰期,下列说法正确的是大量放射性元素的原子核经过2个半衰期后,已衰变的原子核质量与未衰变原子核质量之比为3:1B.大量放射性元素的原子核经过2个半衰期后,已衰变的原子核质量与衰变前原子核质量之比为1:4C.大量放射性元素的原子核经过2个半衰期后,产生的新原子核质量与衰变前原子核质量之比为3:4
