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ID:42075072
大小:1.21 MB
页数:8页
时间:2019-09-07
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1、DinosaurstheExtinctionofDinosaursThreeTheoriesTheory1:TheworldwidetemperatureriseattheendoftheCretaceous,whichcausedthemaledinosaur’stestestostopfunction.Asaresult,sterilizationstopped,leadingtoextinctionofthedinosaurs.Theory2:Thesecondtheoryattribute
2、sthedisappearanceofdinosaurstotheiringestingpsychoactiveagentscontainedinflowingplants.Theory3:Anasteroidhittheearth,causingacloudofdusttoblockoutthesun.Thishaltedphotosynthesis光合作用anddroppedthetemperature,andmultiplecreaturesdied.霸王龙Ty-rranosaurus雷龙B
3、rontosaurus禽龙Ig-uanodon剑龙Stegosaurus钩龙Ankylo-saurus三角龙Triceratops
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