关于人防工程中消防控制室的设计规定，下列叙述( )有误。

A．应采用耐火极限不低于2h的隔墙
B．应采用耐火极限不低于2h的楼板
C．隔墙上的门应采用乙级防火门
D．应设置在地下一层，直通地面的安全出入口处

The old rules have to be    _____because they only applied to the circumstances that existed when they were made a hundred years ago.

A．developed

B．established

C．observed

D．revised