55.氣喘學童用尖峰吐氣流速監測,若急性發作,在尖峰流速最佳值的多少比率時應去急診室處理?
(A)<50%
(B)51%~60%
(C)61%~79%
(D)>80%
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統計: A(245), B(69), C(40), D(8), E(0) #2971199
統計: A(245), B(69), C(40), D(8), E(0) #2971199