75. 下列對氣管內管氣囊的pilot balloon接頭之敘述,何者錯誤?
(A)為單向閥
(B)為spring-loaded valve
(C)有時氣囊壓力過高時,可能是此接頭閥損壞所致
(D)泡綿式氣囊(foam cuff)無此接頭
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統計: A(56), B(65), C(261), D(117), E(0) #2408859
統計: A(56), B(65), C(261), D(117), E(0) #2408859