53.下列何者不屬於 CPAP 系統常發生的問題?
(A)auto-triggering
(B)inadequate flow
(C)leaks
(D)obstruction of the expiratory threshold resistor
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統計: A(241), B(88), C(29), D(87), E(0) #1557803
統計: A(241), B(88), C(29), D(87), E(0) #1557803