生物高中必修三有几句话不理解1.突触传递的特点中“总和”这个特点不理解,2.兴奋在神经元上的传导是双向的,而在神经元间的传导是单向的前后有区别么.3.为什么线粒体内氧分压低,CO2分压
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![生物高中必修三有几句话不理解1.突触传递的特点中“总和”这个特点不理解,2.兴奋在神经元上的传导是双向的,而在神经元间的传导是单向的前后有区别么.3.为什么线粒体内氧分压低,CO2分压](/uploads/image/z/12659316-60-6.jpg?t=%E7%94%9F%E7%89%A9%E9%AB%98%E4%B8%AD%E5%BF%85%E4%BF%AE%E4%B8%89%E6%9C%89%E5%87%A0%E5%8F%A5%E8%AF%9D%E4%B8%8D%E7%90%86%E8%A7%A31.%E7%AA%81%E8%A7%A6%E4%BC%A0%E9%80%92%E7%9A%84%E7%89%B9%E7%82%B9%E4%B8%AD%E2%80%9C%E6%80%BB%E5%92%8C%E2%80%9D%E8%BF%99%E4%B8%AA%E7%89%B9%E7%82%B9%E4%B8%8D%E7%90%86%E8%A7%A3%2C2.%E5%85%B4%E5%A5%8B%E5%9C%A8%E7%A5%9E%E7%BB%8F%E5%85%83%E4%B8%8A%E7%9A%84%E4%BC%A0%E5%AF%BC%E6%98%AF%E5%8F%8C%E5%90%91%E7%9A%84%2C%E8%80%8C%E5%9C%A8%E7%A5%9E%E7%BB%8F%E5%85%83%E9%97%B4%E7%9A%84%E4%BC%A0%E5%AF%BC%E6%98%AF%E5%8D%95%E5%90%91%E7%9A%84%E5%89%8D%E5%90%8E%E6%9C%89%E5%8C%BA%E5%88%AB%E4%B9%88.3.%E4%B8%BA%E4%BB%80%E4%B9%88%E7%BA%BF%E7%B2%92%E4%BD%93%E5%86%85%E6%B0%A7%E5%88%86%E5%8E%8B%E4%BD%8E%2CCO2%E5%88%86%E5%8E%8B)
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