患者，男性。28岁.头颅为高空坠物砸伤昏迷.手术治疗后患者清醒.但患者出现尿量增多.

截至2011年2月8日，全国共有9个省份累计报告甲型H1N1流感死亡病例20例。组成甲型H1N1流感病毒的最基本元素是[ ]

A．O

B．H

C．C

D．N

-----I had a great time_______ games with my friends in the park yesterday.  

----How great! But I didn't have any time_______ at all, I had to get ready for the test.  [ ]

A. playing, to play  

B. play, to play

C. playing, playing  

D. to play, playing

“傍妻”、“小妻”、“小妇”是（）时期妾的名称之一。

确定型决策

IP头中的ToS字段提供了（）个IP Precedence优先级。

A.8

B.16

C.32

D.64