属于国家秘密的设备或者产品，在确定密级和保密期限的同时，还应当明确（）。
参考答案：保密要点
哌替啶不具有的作用是（）
A.镇痛、镇静
B.欣快症
C.止咳
D.恶心、呕吐
E.抑制呼吸
The nurse is caring for four clients on a step-down intensive care unit. The client at the highest risk for developing nosocomial pneumonia is the one who（）
A. has a respiratory infection.
B. is intubated and on a ventilator.
C. has pleural chest tubes.
D. is receiving feedings through a jejunostomy tube.
