单词：Wenlock Shales
温洛克灰岩
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14 A Rare Fossil Record The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had
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新概念优美背诵短文50篇
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14 A Rare Fossil Record The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a
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London 's Mascots are Revealed 伦敦奥运会吉祥物与公众见面 They have frightened some and enchanted others. They are Wenlock and Mandeville, mascots of the London Olympic Games. The one-eyed figures join the large family of mascots that in
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