“End-Cretaceous mass extinction”的概念、定义、翻译、参考文献-科学参考

单词	End-Cretaceous mass extinction
释义	End-Cretaceous mass extinction Encyclopedia 理学古生物学释 End-Cretaceous mass extinction白垩纪末大灭绝距今6500万年左右，地球生物圈遭受的一次大规模的集群灭绝事件。
随便看	The Brothers Karamazov The Buchanan Report the Budapest Declaration on World Heritage the budget of basic healthy insurance fund for urban employee The Buffalo Boy the buffering hypothesis The builders of Red Flag Canal the building of satellite towns The Bulletin the bund tunnel in Shanghai the burden of proof in labor dispute arbitration The Bureau for Compilation of Law The Bureau of Fisheries and Fishery Administration,the Ministry of Agriculture The Bureau of Fishery Ship Inspection, Ministry of Agriculture The Burghers of Calais The Burial of the Count of Orgaz The Burning of the Imperial Palace The Burns Constitution of 1946 The Bustling and Hustling of Nanjing The Butantan Institute The Butcher Scholar The Butterfly Golet The Butterfly Lovers The Butterfly Lovers: Leon and Jo The Butterfly Murders

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