21 個案的肺總量(total lung capacity)為6000cc,肺活量(vital capacity)為4800cc,吸氣容量(inspiratory capacity)為3600cc,潮氣容積(tidal volume)為600cc。請問功能性肺餘容量(functional residual capacity)應該是?
(A)1200cc
(B)2400cc
(C)3000cc
(D)4200cc
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統計: A(18), B(43), C(3), D(0), E(0) #914864
統計: A(18), B(43), C(3), D(0), E(0) #914864