A.routeprint B.tracert C.ping D.netstat E.nslookup
A.255.255.255.252 B.255.255.255.248 C.255.255.255.240 D.255.255.255.224
A.第0時(shí)隙 B.第1時(shí)隙 C.第16時(shí)隙 D.第32時(shí)隙