I think no one will give you any help. They think you _____ swim in your age.[ ]

A. are worth

B. are used to

C. make you

D. are supposed to

一个完善的应急预案按相应过程包括方针与原则、应急策划、应急准备、应急响应、现场恢复：预案管理与评审6个一级关键要素。机构与职责、应急资源、教育培训与演练互助协议等二级要素属于一级要素中的( )。

A．方针与原则

B．应急策划

C．应急准备

D．应急响应