如图是心脏结构示意图请据图回答1仔细观察�们�现心室的壁比心房的壁厚其中 的壁最厚这体现了生物体的结构与 相适应的观点.2 Template




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tomski如图是心脏结构示意图请据图回答1仔细观察�们�现心室的壁比心房的壁厚其中 的壁最厚这体现了生物体的结构与 相适应的观点.2 coloring