水利水电地下工程按其断面大小可分为( )。
A．小断面
B．中断面
C．大断面
D．特大断面
E．较大断面
参考答案：A,B,C,E
During a panic attack, a client runs to the nurse and reports breathing difficulty, chest pains, and palpitations. The client also is pale and has a wide open mouth and raised eyebrows. What should the nurse do first
A．Assist with deep breathing into a paper bag.
B．Orient the client to person, place, and time.
C．Set limits for acting out delusional behaviors.
D．Administer an anxiolytic agent IM.
液氯常温下为黄绿色、有强烈刺激性臭味的气体。（）
