E-R模型用于数据库设计的哪一个阶段

A．需求分析

B．概念结构设计

C．逻辑结构设计

D．物理结构设计

The nurse is developing a plan of care for a client with anorexia nervosa. Which action should the nurse include in the plan

A．Set up a strict eating plan for the client.

B．Encourage the client to exercise, which will reduce her anxiety.

C．Restrict visits with the family until the client begins to eat.

D．Provide privacy during meals.