As a result of the serious flood,two-thirds of the buildings in the area_______．[ ]

A. need repairing    

B.needs to repair    

C. needs repairing    

D.need to repair

( )是设备合同签约前唯一一次能和业主进行双向谈判的机会。

A．技术引进

B．设备改进

C．合同谈判

D．设备运输