问答题

如图1-1所示为网络地址转换(NAT)的一个实例。为②的方格中的内容应为______。

A.shangxueba.cn/images/2010q3/ct_csnfnz2009_cnfnchoose_00009(20106).jpg'
B.S=172.16.1.3,2012
C.81.2.1,6023
B．S=211.81.2.1,6023
D.113.66.2,80
C．S=202.113.66.2,80
E.81.2.1,6023
D．S=211.81.2.1,6023
F.16．1.3,2012

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摩拜单车和滴滴出行都属于什么商业模式？（）

A.共享经济
B.C2C
C.P2P
D.新零售

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In low - speed network ,it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high - speed networks, this approach often works poorly, because in the(71)between sending the notification and notification arriving at the source, thousands of additional(72)may arrive. In ATM network , a major tool for preventing(73)is(74)control. When a host wants a new virtual(75),it must describe the traffic to be offered and the service expected.

A．interval
B．time
C．slot
D．delay