What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals?()
A. RSTP information is automatically aged out.
B. The port sends a TCN to the root bridge.
C. The port moves to listening state.
D. The port becomes a normal spanning tree port.
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下列何者与食品中的微生物增殖没有太多关系()
A. 温度
B. 湿度
C. 酸度
D. 脆度
消费结果对消费主体和人类生存环境的健康危害最小即()消费。
A. “恒温消费”
B. “经济消费”
C. “安全消费”
D. “可持续消费&rdquo