The three faces of victim are ( )? A: protector B: perpetrator C: rescuer D: victim

When performing mouth-to-mouth blowing, the lips of the rescuer should cover the lips of the wounded to avoid air leakage（)

What is the compression-ventilation ratio for single rescuer? A: 30:2 B: 15:2 C: 30:1 D: 15:1

What is Larry’s job A: A professional driver. B: A telephone operator. C: A rescuer on the Golden Gate Bridge. D: A guard on the Golden Gate Bridge.