— Can I help you? 

— ______. [ ]

A. That's good.

B. OK, I'll take it.

C. Yes, I'd like a coat.

D. No, you can't.

偏心工件的装夹方法有：两顶尖装夹、四爪卡盘装夹、三爪卡盘装夹、偏心卡盘装夹、双重卡盘装夹、（）夹具装夹等。

A、专用偏心

B、随行

C、组合

D、气动