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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
25.中国人民解放军海军福建舰,是中国完全自主设计建造的首艘弹射型航空母舰,采用平直通长飞行甲板,配置电磁弹射和阻拦装置,满载排水量8.5万吨,此时舰船所受的浮力是▲iN(g=10N/kg)。。当舰船从海洋驶入长江时,浮力▲,吃水深度▲(后两空均选填“变大”“变小”或“不变”)。
