对于室颤病人首选治疗措施是（）
A.观察瞳孔是否散大
B.触摸大动脉搏动
C.人工呼吸，胸部按压
D.同步直流电除颤
E.非同步直流电除颤
参考答案：E
我国采取单一制国家结构形式的原因是( )。
A．经济原因
B．政治原因
C．历史原因
D．民族原因
Do remember or wash the vegetables ___.
A．as clean as possible
B．as cleanly as possible
C．possible as clean as
D．possible as cleanly as
