40 為保持肺部之膨脹,正常人體肋膜壓力大約是多少 mmHg?
(A)+4
(B)+2
(C)0
(D)-4
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統計: A(4), B(6), C(0), D(16), E(0) #2992901
統計: A(4), B(6), C(0), D(16), E(0) #2992901