— I will clean the living room if you clean the bedroom.

— OK. ____ . [    ]

A. It's a bargain  

B. It's a deal          

C. It's a pleasure  

D. It's up to you .

电火花检漏仪有两个接头分别是（）。

A、探头和接地

B、探头和零点

C、接地和零点

D、以上均不正确