单项选择题

A.18.5Kpa(140mmHg),4Kpa(30mmHg)
B.10.67Kpa(80mmHg),2.67Kpa(20mmHg)
C.14Kpa(105mmHg),4Kpa(30mmHg)
D.20Kpa(150mmHg),8Kpa(60mmHg)