生物化石之所以能证明生物的进化根本原因是 A.化石是生物的祖先b.各类生物化石在地层中出现有一定的顺序c.化石是保存在地层中的生物遗体 Template




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tomski生物化石之所以能证明生物的进化根本原因是 a.化石是生物的祖先b.各类生物化石在地层中出现有一定的顺序c.化石是保存在地层中的生物遗体 coloring