代谢性碱中毒（）

A.HCO₃^-↓，pH↑，PaCO₂↓

B.HCO₃^-正常，pH↓，PaCO₂↓

C.HCO₃^-正常或↑，pH↓，PaCO₂↓

D.HCO₃^-↑，pH↑，PaCO₂正常或↑

E.HCO₃^-↓，pH↓，PaCO₂正常或↓

Going to school _____ breakfast is bad _____ your health.[ ]

A. with; for

B. without; for

C. with; at

D. without; at