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The alveoli are polyhedral spheres with a gap on one side, which are connected with alveoli sac and alveoli duct.
The alveoli are polyhedral spheres with a gap on one side, which are connected with alveoli sac and alveoli duct.
A.正确
B.错误
正确答案：正确
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动物解剖生理
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The alveoli are directly connected to the respiratory bronchioles.
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he main function of the channels from the intrapulmonary bronchus to the terminal bronchioles is to ensure and control pulmonary ventilation, and to have gas exchange function.