68.下列造成低血氧(hypoxemia)情形的機轉中,何者最常見?
(A)吸入空氣的氧分壓下降
(B)換氣不足(hypoventilation)
(C)動靜脈分流(shunt)
(D)換氣灌流不協調(ventilation/perfusion mismatch)
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統計: A(46), B(140), C(41), D(246), E(0) #3816423
統計: A(46), B(140), C(41), D(246), E(0) #3816423