A.PaO2为55mmHg，PaCO2为40mmHg
B.PaO2为55mmHg，PaCO2为55mmHg
C.PaO2为65mmHg，PaCO2为40mmHg
D.PaO2为70mmHg，PaCO2为40mmHg
E.PaO2为70mmHg，PaCO2为45mmHg