护理诊断PSE陈述公式中“E”是()
A．相关因素
B．原因
C．健康问题
D．计划
E．症状和体征
参考答案：B
— What's your father doing, Brad?
— He is talking with a friend of _____ in the sitting room. [ ]
A. him
B. his
C. hers
D. himself
事故隐患可分为哪几级？
