The nurse is caring for a client with a fractured hip. The client is combative and confused, and he’s trying to get out of bed. The nurse should

A. leave the client and get help.
B. obtain a physician’s order to restrain the client.
C. read the facility’s policy on restraints.
D. order soft restraints from the storeroom.

双代号时标网络计划是以（）为尺度编制的网络计划。

A．单代号网络计划

B．时间坐标

C．单代号时间网络计划

D．双代号时间网络计划