9.井田开拓方式按井筒形式可分为（ ）

er cooperte with globl compnies Becuse they hve stronger finncilbility. B．Becuse they hve more customersnd influence. C．Becuse they will crry out their promise. D．Becuse they hve good reputtion.A．Because they have stronger financial ability．B．Because they have more customers and influenceC．Because they will carry out their promiseD．Because they have good reputation．