PING www.adh.cn (139.199.87.135) 56(84) bytes of data.
64 bytes from 139.199.87.135 (139.199.87.135): icmp_seq=1 ttl=49 time=313 ms
64 bytes from 139.199.87.135 (139.199.87.135): icmp_seq=2 ttl=49 time=309 ms
64 bytes from 139.199.87.135 (139.199.87.135): icmp_seq=3 ttl=49 time=312 ms

--- www.adh.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 309.474/311.820/313.501/1.827 ms