药品( )越高，适用的销售费用率和销售利润率就越高。

A．疗效

B．创新程度

C．质量

D．技术含量

A client with paranoid type schizophrenia becomes angry and tells the nurse to leave him alone. The nurse should（）

A. tell him that she’ll leave for now but will return soon.

B. ask him if it’s okay if she sits quietly with him.

C. ask him why he wants to be left alone.

D. tell him that she won’t let anything happen to him.