单选题 vlan ID在以太网帧中占()位bit。vlan ID is of_bits in Ethernet frame.

A、 10
B、 11
C、 13
D、 12
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单选题 vlan ID在以太网帧中占()位bit.vlan ID is f _bits in Ethernet frame.

A、11
B、10
C、12
D、13

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