40.高山上大氣壓是347 mmHg,肺泡內水氣壓(partial pressure of water vapor)為47 mmHg,假設空氣中含
20%的氧氣,此時吸氣在肺內之氧氣分壓(PO2)最接近多少mmHg?
(A)60
(B)150
(C)347
(D)760
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統計: A(626), B(300), C(131), D(83), E(0) #3280770
統計: A(626), B(300), C(131), D(83), E(0) #3280770