— May I have a word with you?

— ________. I'm not busy, anyway. [ ]

A. By no means    

B. By all means    

C. By means of    

D. By any means

为了实现行政沟通的高效率原则，应特别注意以下( )方面。

A．采用非常规沟通方式

B．保证沟通渠道畅通无阻

C．沟通手段多样化

D．沟通技术现代化