生物高手帮我解释一下关于消化系统、呼吸系统、心、循环系统的结构和功能如果可以的话,功能,和消化系统消化系统唾腺(salivary glands)食道(esophagus)十二指肠(duodenum)空肠(jejunum)回肠(Ileum)大
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![生物高手帮我解释一下关于消化系统、呼吸系统、心、循环系统的结构和功能如果可以的话,功能,和消化系统消化系统唾腺(salivary glands)食道(esophagus)十二指肠(duodenum)空肠(jejunum)回肠(Ileum)大](/uploads/image/z/7954566-6-6.jpg?t=%E7%94%9F%E7%89%A9%E9%AB%98%E6%89%8B%E5%B8%AE%E6%88%91%E8%A7%A3%E9%87%8A%E4%B8%80%E4%B8%8B%E5%85%B3%E4%BA%8E%E6%B6%88%E5%8C%96%E7%B3%BB%E7%BB%9F%E3%80%81%E5%91%BC%E5%90%B8%E7%B3%BB%E7%BB%9F%E3%80%81%E5%BF%83%E3%80%81%E5%BE%AA%E7%8E%AF%E7%B3%BB%E7%BB%9F%E7%9A%84%E7%BB%93%E6%9E%84%E5%92%8C%E5%8A%9F%E8%83%BD%E5%A6%82%E6%9E%9C%E5%8F%AF%E4%BB%A5%E7%9A%84%E8%AF%9D%2C%E5%8A%9F%E8%83%BD%2C%E5%92%8C%E6%B6%88%E5%8C%96%E7%B3%BB%E7%BB%9F%E6%B6%88%E5%8C%96%E7%B3%BB%E7%BB%9F%E5%94%BE%E8%85%BA%28salivary+glands%29%E9%A3%9F%E9%81%93%28esophagus%29%E5%8D%81%E4%BA%8C%E6%8C%87%E8%82%A0%28duodenum%29%E7%A9%BA%E8%82%A0%28jejunum%29%E5%9B%9E%E8%82%A0%28Ileum%29%E5%A4%A7)
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