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【多选题】
表面质量对零件的以下哪些使用性能有影响?()A.
耐磨性
B.
耐蚀性
C.
疲劳强度
D.
配合质量
E.
密封性
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举一反三
【多选题】What are the types of transitions?
A.
Transitions between paragraphs
B.
Transitions between sections
C.
Transitions within paragraphs
【简答题】世界上第一台电子数字计算机:
【单选题】When a speaker uses transitions, it means he has completed one thought and is moving on to another. So transitions state____________.
A.
the idea the speaker is leaving
B.
the idea the speaker is coming up to
C.
Both A and B
【判断题】Transitions state both the idea the speaker is leaving and the one the speaker is coming to.
A.
正确
B.
错误
【单选题】How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）
A.
All ports will temporarily transition to the learning state for a period equal to the max age timer plus the forward delay interval.
B.
All ports will transition temporarily to the learning state for a period equal to the forward delay interval.
C.
The default aging time for MAC address entries will be reduced for a period of the max age timer plus the forward delay interval.
D.
The default hello time for configuration BDPUs will be reduced for the period of the max age timer.
【单选题】When you enable PortFast on a switch port, the port immediately transitions to which state?
A.
Blocking
B.
Forwarding
C.
Learning
D.
Listening
【判断题】Technically, transitions state both the idea the speaker is leaving and the one she or he is coming to.
A.
正确
B.
错误
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