— Hello, Grand Hotel.  

— I'd like a room with a bath. How much do you ____?   [    ]

A. ask                

B. charge    

C. afford      

D. pay

农商通信息机属于以下哪几种类型的POS（）

A.银联直联POS

B.间联POS

C.有线POS

D.无线POS