It was one of those days when it looked at first something interesting could happen, but then later, when you didn't expect anything, almost everything happened.

A．nothing

B．anything

C．everything

D．all things

护士需要工作的环境安全、经济保障、职业安全等，这些需要属于

A．生理需要
B．安全需要
C．爱与归属的需要
D．尊重的需要
E．自我实现的需要