颅脑手术后应特别注意观察()
A.生命体征变化
B.血气分析
C.神志,瞳孔
D.患肢血液循环
E.肢体活动情况
参考答案:C
So many directors ________, the board meeting had to be put off.
A.were absent
B.been absent
C.had been absent
D.being absent
仔猪自动饮水器流量()适宜。
A、1-2升/分钟
B、2-3升/分钟
C、3-4升/分钟
D、4-5升/分钟