— A robot dog provides you with unconditional love, gentleness and undemanding attention.

— _____ Does it do what every small dog is supposed to do?   [ ]

A. That's reasonable advice.              

B. Isn't it a good idea.

C. Do you think so?                      

D. I can't agree more.

网卡的速度是描述网卡接收和发送数据的快慢。