A.0.5~1.0cm B.1.0~1.5cm C.1.5~2.0cm D.2.0~2.5cm E.1.3~1.8cm
A.气管 B.左、右主支气管 C.肺叶支气管 D.肺段支气管 E.环状软骨
A.2cm B.3cm C.8~10cm D.18~20cm E.23~25cm
A.主支气管一段支气管-肺叶支气管-呼吸性细支气管-肺泡管-肺泡 B.肺叶支气管一段支气管-主支气管-呼吸性细支气管-肺泡管-肺泡 C.主支气管-肺叶支气管一段支气管-呼吸性细支气管-肺泡管-肺泡 D.主支气管-肺叶支气管一段支气管-肺泡管-呼吸性细支气管-肺泡 E.主支气管一段支气管-肺叶支气管-呼吸性细支气管-肺泡管-肺泡
A.16cm B.23cm C.27cm D.30cm E.36cm