是真的不能访问，看ping

来源: 于 2009-04-30 08:44:45 [旧帖] [给我悄悄话] 本文已被阅读：次

是真的不能访问，


E:\>ping http://www.uscis.gov/

Pinging http://www.uscis.gov/ [8.15.7.117] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 8.15.7.117:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),