判断机体酸碱平衡的最基本指标是
A.HCO3-B.CO2CPC.pHD.PaCO2E.BE
参考答案:C
激励方式的主要类别不包括()
A.物质激励
B.精神激励
C.民主激励
D.情感激励
E.管理激励
I really find watching movies _______. It didn't help at all. [ ]
A. interesting
B. frustrating
C. surprising
D. amazing