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【简答题】
设信道上数据传输速率为4Kbps,数据帧长为240bit,信道的传播20ms,采用停等协议,帧的控制信息、确认帧长及帧处理时间均忽略不计。试求出信道的利用率。
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举一反三
【简答题】Using whatever cohesive device is appropriate: The strength of the collective is boundless. The strength of the individual is very limited.
【单选题】According to the passage, what is the common theme depicted by the artists of the Hudson River School?
A.
Poetry is the highest form. of art.
B.
The human soul can be lifted up by Nature.
C.
Man can transform. Nature.
D.
Art is superior to life.
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