Which of the following is the order of pCO2 from low to high?
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Which of the following is the order of pCO2 from low to high?
A.Exhalation < tissue cell < venous blood < alveolar gas
B.exhalation < alveolar gas < venous blood < tissue cell
C.exhalation < alveolar gas < tissue cell < venous blood
D.venous blood < exhalation < alveolar gas < tissue cell
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