多选题Which of the following are spanning tree port states?（）ALearningBSpanningCListeningDForwardingEInitializingFFilteringGPermitting
多选题
Which of the following are spanning tree port states?（）
A
Learning
B
Spanning
C
Listening
D
Forwarding
E
Initializing
F
Filtering
G
Permitting
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解析：
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