软件计划是软件开发的早期和重要阶段，此阶段要求互相配合的是( )。

A．设计人员和用户

B．分析人员和用户

C．分析人员、设计人员和用户

D．编码人员和用户

When the waiter saw the man in rags coming into the  restaurant, he looked down upon him but had

to offer some          service to him.    [ ]

A. unwilling                

B. willing      

C. wonderful                

D. excellent