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山西省2023~2024学年第二学期高三开学质量检测(243577Z)英语试卷答案

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际26.WhatcanwelearnfromherwordsA.Thedeafcannotdowhattheywantto.B.Thedeafshouldhaveagoodinterpreter.C.Thedeafcanchoosethecareerattheirwill.D.Thedeafshouldlearndancingwhilegrowingup.27.What'sthemainreasonforhertocompeteintheshow?A.Togetthegrandprizeforherfamily.B.Tomakeadifferencetothedeafworld.C.Toshowwhatdeafpeople'sreallivesarelike.D.ToproveshehasalreadyremovedthebarriersCAnyonewhocommutes(il)bycarknowsthattrafficjamsareanunavoidablepartoflife.Buthumansarenotaloneinfacingpotentialbackups.Antsalsocommutebetweentheirnesandsourcesoffood.Thesurvivaloftheirhabitatsdependsondoingthisefficiently.Whenhumanscommute,there'sapointatwhichcarsbecomedenseenoughtoslowdowntheflowoftraffic,causingjam.Researcherswantedtoknowifantsonthemovecouldalsogetstuck.SotheyregulatedtrafficdensitybyconstructingbridgesofvarouwidthsbetweenacolonyofArgentineantsandasourceoffood.Thentheywaitedandwatched,tryingtofindoutatwhatpointtheyaregoingtohaveatrafficjam.Butitappearsthatthatneverhappened.TheyalwaysmanagedtoavoidtrafficjaTheflowofantsdidincreaseatthebeginningasantsstartedtofillthebridgeandthenleveledoffathighdensities.Butitneversloweddownorstopped,evenwhenthebridgewasnearlyfilledwithants.Theresearchersthentookacloserlookathowthebehaviourofindividualantsimpactedtrafficasawhole.Andtheyfoundthatwhenantssenseovercrowding,theyadjusttheirspeedsandavoidenteringhigh-densityareas,whichpreventsjams.Thesebehaviorsmaybepromotedbypheromones,chemicalsthattellotherantswhereatrailis.Theantsalsomanagetoavoidcollidingwitheachotherathighdensities,whichcouldreallyslowthemdown.Canantshelpussolveourowntrafficproblems?Notlikely.That'sbecausewhenitcomestogettingfrompointAtopointBasfastaspossible,humandriversputtheirowngoalsfirst.Individualantshavetobemorecooperativeinordertofeedthecolony.Buttheresearchcouldbeusefulinimprovingtrafficflowforself-drivingcars,whichcanbedesignedtobelesslikeselfishhumans-andmorelikeants.28.Howdidtheresearchersconducttheirstudyonants?A.Bycomparingvarietiesofants.B.Byanalyzingtheireatinghabits.CBycontrollingtheirnaturalhabitats.D.Byobservingantsondifferentwidthsofbridges.29.Whighofthefollowingisthefindingofthestudy?ATrafficjamsoftenhappentotheants.B.Theantstendtoenterthehigh-densityareas.C.Pheromonesmaycontributetotheants'commuting.D.Behaviourofindividualantsmakesnodifferencetothetraffic.30.Whatdoestheunderlinedword"colliding"inParagraph4mean?C.Depart.D.Encounter.A.Crash.B.Separate.高三英语第4页共8页

5.作为全球无人机领域的领航者,大疆在该领域一骑绝尘,是名副其实的国货之光,2021年11月5日,大疆发布迄今为止影像质量最优异的消费级无人机Mavic3.下图是该型号无人机绕拍摄对象时在水平面内做匀速圆周运动的示意图.已知无人机的质量为nn,无人机的轨道距拍摄对象高度为无人机与拍摄对象距离为r,无人机飞行的线速度大小为v,则无人机做匀速圆周运动时A.角速度为rB.所受空气作用力为mgC.向心加速度为v^2r^2-h^2D.绕行一周的周期为

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