---What’s the best restaurant in your town？

---Red Star Restaurant. The customers are all pleased with the ____ of the restaurant.

A．service

B．experience

C．notice

D．fruit

牛伯伯要锯一根长6米的木头．从一端开始，先12厘米锯一段，再8厘米锯一段，长短交替着锯．若每锯一段需要2分钟，且锯完一段休息2分钟．那么，牛伯伯要锯完这根木头需要多少分钟？