68-那一種人工氣道的氣囊屬於自動充氣式（self-inflating )?
(A) pilot balloon
(B) air-filled cuff
(C) water-filled cuff
(D) foam cuff

答案：登入後查看
統計： A(4), B(2), C(0), D(25), E(0) #1103931