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【单选题】
如果以太网交换机中某个运行STP的端口不接收或转发数据，接收并发送BPDU，不进行地址学习，那么该端口应该处于（）状态。A.
Blocking
B.
Listening
C.
Learning
D.
Forwarding
E.
Waiting
F.
Disable
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