Some scientists contend that many species of dinosaur had a metabolism more like a warm-blooded mammal's than a cold-blooded reptile's.
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Athat many species of dinosaur had a metabolism more like
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Bthat the metabolism of many dinosaur species were more like
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Cthat the metabolisms of many species of dinosaurs were more like those of
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Dthere were many species of dinosaurs that had metabolisms more like those of
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Ethere were many dinosaur species that had a metabolism more like that of
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正确答案: A