The nasal cavity, pharynx, larynx, trachea and （） are the channels for gas to enter and leave the lung, which are called respiratory tract._精华吧

The nasal cavity, pharynx, larynx, trachea and （） are the channels for gas to enter and leave the lung, which are called respiratory tract.

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The nasal cavity, pharynx, larynx, trachea and （） are the channels for gas to enter and leave the lung, which are called respiratory tract.

正确答案：bronchus

Tag：动物解剖生理时间：2021-12-25 22:23:35

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