__  Mr. Jones called while you were out. He was in _____ very bad temper.

A．/ ; a

B．A; /

C．The; the

D．A; a

电话银行企业注册客户是指与我行签订电子银行服务协议，办理电话银行客户注册手续，并获得电话银行服务的企事业单位。企业电话银行服务仅针对（）。