如果结果不匹配，请 
更多“下面哪一种状态是紊流（）”相关的问题
(A) 上临界雷诺数
(B) 上临界雷诺数和下临界雷诺数的平均值
(C) 下临界雷诺数
(D) 都不是
A．与Re和管长ι有关
B．与管壁相对粗糙ks/d有关
C．与雷诺数Re有关
D．与Re及ks/d有关
A. The RE controls and monitors the chassis
B. The RE manages the Packet Forwarding Engine (PFE)
C. The RE receives a copy of the forwarding table from the forwarding plane
D. The RE implements class of service (COS)
A. The RE controls and monitors the chassis.
B. The RE manages the Packet Forwarding Engine (PFE).
C. The RE receives a copy of the forwarding table from the forwarding plane.
D. The RE implements class of service (COS).
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A．Rs+[rbe+(1+β)RE]∥RB
B．(Rs∥RB) ∥[ rb+(1+β)(RE∥RL]
C．RB∥[rbe+(1+β)RE]
D．RB∥[ rbe+(1+β)(RE∥RL)]
A. Transit traffic is handled by the RE only
B. Transit traffic is handled by the PFE only
C. Transit traffic is handled by both the RE and the PFE
D. Transit traffic is not handled by the RE or the PFE
