行开放性喉外伤清创整复时,应包括下列哪些()
A.切除无生机组织
B.清除破碎软骨
C.逐层对合、缝合组织
D.消除喉腔创面
E.喉腔内放置喉膜
参考答案:A, C, D, E
眼膏基质
A.PVAB.卡波普C.可可豆脂D.甘油E.淀粉
In an emergency,the electro-hydraulic steering units can be directly controlled by the().
A.trick wheel
B.rapson slide
C.follow-up gear
D.receiver unit