右下图为肺的内部结构及血液循环示意图请据图分析回答 1图中标有�的结构称 此处适于气体交换的特点是 ——青夏教育精英家教�—— Template




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tomski右下图为肺的内部结构及血液循环示意图请据图分析回答 1图中标有�的结构称 此处适于气体交换的特点是 coloring