单选题/dev/ethX代表（）。A系统回送接口B以太网接口设备C令牌环网设备DPPP设备
单选题
/dev/ethX代表（）。
A
系统回送接口
B
以太网接口设备
C
令牌环网设备
D
PPP设备
参考解析
解析：
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