单项选择题

A.pH7.30PaO50mmHg,PaCO80mmHg
B.pH7.35PaO80mmHg,PaCO20mmHg
C.pH7.25PaO65mmHg,PaCO30mmHg
D.pH7.40PaO60mmHg,PaCO65mmHg
E.pH7.38PaO50mmHg,PaCO40mmHg