A.10mlB.14mlC.20mlD.30mlE.40ml
A.環(huán)甲膜穿刺術(shù) B.口咽管放置術(shù) C.經(jīng)鼻腔氣管插管術(shù) D.經(jīng)口腔氣管插管術(shù) E.氣管切開術(shù)