QoS refers to the ability of a network to provide improved service, over various underlying technologies, to select network traffic. Which two traits are inherent to QoS?()
A. reference to network ability to provide improved service to all network traffic
B. reduction in delay, jitter, and packet loss
C. equal handling of all packets
D. support for real-time applications
E. best-effort actio
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辅导员的工作内容十分繁杂,琐碎的工作容易让人失去进取心,请你谈谈怎么保持进取心?
气压制动汽车发动机运转时,未踩下制动踏板,储气筒气压可不断升高,发动机熄灭后,仍不踏制动踏板,但气压又不断下降,因为()。
A. 储气筒漏气
B. 刹车分泵漏气
C. 气道漏气
电流继电器两线圈并联时,整定范围增加两倍。()
A. 正确
B. 错误