單項(xiàng)選擇題修改eth0網(wǎng)卡的IP地址為172.18.48.56和子網(wǎng)掩碼255.255.255.128的命令:()

A.ifconfigeth0javascript:void(0);172.18.48.56netmask255.255.255.128
B.ifconfig172.18.48.56netmask255.255.255.128
C.ipconfigeth0172.18.48.56netmask255.255.255.128
D.ifconfigup172.18.48.56netmask255.255.255.128


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