To encourage adequate nutritional intake for a client with Alzheimer's disease, what should the nurse do

A．Stay with the client and encourage him to eat.

B．Help the client fill out his menu.

C．Give the client privacy during meals.

D．Fill out the menu for the client.

检查架空金属管道进人建筑物前每隔（）接地一次，进一步检查连接质量，连接导体的材料和尺寸。

A、20m；

B、25m；

C、30m；

D、35m。