单选题Routershowinterface的作用是（）。A检查端口配置参数和统计数据B进入特权模式C检查是否建立连接D检查配置的协议
单选题
Router>showinterface的作用是（）。
A
检查端口配置参数和统计数据
B
进入特权模式
C
检查是否建立连接
D
检查配置的协议
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