---Cliff, I lost your ball at school. I suppose I should pay for it.

　 ---Oh.____. It was just an old ball anyway.

A．Take it easy

B．By no means 　　

C．You got it

D．Forget it

漏电火灾报警系统可不具有下列功能：（）

A、探测漏电电流、过电流等信号

B、发出声光信号报警

C、准确报出故障线路地址

D、联动自动灭火的消防设施