From his _____ voice, I have to say that he is really _____.

A．disappointing; disappointed

B．disappointed; disappointing

C．disappointing; disappointing

D．disappointed; disappointed

应用入侵防护系统(AIPS)一般部署在______。

A．受保护的应用服务器前端
B．受保护的应用服务器中
C．受保护的应用服务器后端
D．网络的出口处