单项选择题
A.FAT16 B.FAT32 C.NTFS D.UNIX
A.80 B.139 C.443 D.445
A.Ipconfig/displaydns B.Ipconfig/renew C.Ipconfig/flushdns D.Ipconfig/release
A.DNS B.LDAP C.TCP/IP D.DHCP
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