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设结点N=20,间距d=15km,传播时延t=10us/km,结点识别探询帧所需平均均时间ts=10ms,线路容量C=1200b/s,探询帧长为36b.采用传递轮寻方式的时,整个系统的巡回时间为多少?

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设结点N=20,间距d=15km,传播时延t=10us/km,结点识别探询帧所需平均均时间ts=10ms,线路容量C=1200b/s,探询帧长为36b.采用轮叫轮询方式的时,整个系统的巡回时间为多少?

Match the following words and expressions with the definitions and descriptions

用括号中所给单词的适当形式填空1.The manager was(entire)______unaware of the trouble with the heating system in the hotel until this week.

用括号中所给单词的适当形式填空By the end of next month,we(find)______a good solution to the technical problem.

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