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STP 的端口状态的变化顺序是() A) Blocking ,lear ing ,listening ,forwarding B) Blockin
STP 的端口状态的变化顺序是( )
A) Blocking ,lear ing ,listening ,forwarding
B) Blocking ,learing ,forwarding ,listening
C) Blocking ,listening ,lear ing ,forwarding
D) Blocking ,forwarding ,listening ,lear ing
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