智能建筑的楼宇自动化系统包括的内容有( )。

A．电梯监控系统

B．保安监控系统

C．防盗报警系统

D．给排水监控系统

_____ the society developing very fast, it's quite necessary that we should have a good knowledge of

English and computers. [ ]

A. As        

B. For      

C. With      

D. Since