护士长积极组织护理人员对坠床的病人进行处置，属于风险管理的( )
A．风险评估
B．风险前控制
C．风险中控制
D．风险后控制
参考答案：C
肝中参与胆红素生物转化的主要物质是
A．硫酸根
B．乙酰基
C．葡萄糖醛酸
D．甲基
E．甘氨酰基
— ______ didn’t Sally play the violin at the concert last night?
—She said that her hand hurt, but that was only an excuse. I saw her play tennis just now.
A．Why
B．Where
C．Which
D．What
