單項選擇題

網(wǎng)關(guān)地址是192.168.1.1,向172.168.0.0網(wǎng)段增加一條路由信息的正確命令是哪個()

A.routeADD172.168.0.0mask255.255.0.0192.168.1.1
B.routeADD172.168.0.0255.255.0.0192.168.1.1
C.routeADD172.168.0.0255.255.0.0mask192.168.1.1
D.route172.168.0.0mask255.255.0.0192.168.1.1

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