---Have you ever had any skin problems _______eating junk food?

---- Yes, two years ago.

A．close to

B．different from

C．far from

D．connected with

把十六进制的IP地址C22F1588转换成十进制的点分式，并说明该地址属于哪类网络地址，以及该种类型地址的每个子网最多可能包含多少台主机。