— Could I ask you a rather personal question?

—  ______. [ ]

A. Yes, don't worry

B. Of course, go ahead

C. Yes, help yourself

D. Of course, why not

接口是( )的逻辑部件。

A．CPU与系统总线之间

B．系统总线与I/O设备之间

C．主存与I/O设备之间

D．运算器与I/O设备之间