单项选择题修改eth0网卡的IP地址为172.18.48.65和子网掩码255.255.255.128的命令:()

A.ifconfigeth0172.18.48.65netmask255.255.255.128
B.ifconfig172.18.48.65netmask255.255.255.128
C.ipconfigeth0172.18.48.65netmask255.255.255.128
D.ifconfigup172.18.48.65netmask255.255.255.128


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