电气接地一般可分为两类，（）。

A、工作接地和保护接

B、工作接地和防雷接地

C、防雷接地和保护接

D、设备接地和保护接地

---- If he does you a favour, you should do him a favour.    

---- I can’t agree more. ____.

A．One good turn deserves another

B．Justice has long arms

C．One false move may lose the game

D．Lies have short legs