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1-10 试在下列条件下比较电路交换和分组交换。 要传送的报 x ( bit )。从源点到终点共经过 k 段链路,每段链路的传播时延为 d ( s ),数据率为 b(b/s) 。在电路交换路的建立时间为 s(s) 。在分组交换时分组长度为 p(bit) ,且各结点的排队等待时间可忽略不计。 问在怎样的条件下,分组交换的时延比电路交换的要小? (提示:画一下草图观察 k 段链路共有几个结点。)
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【单选题】There are some well-known theories about the origin of language, among which______ proposes an extremely specific connection between physical and oral gesture.
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【单选题】There are some well-known theories about the origin of language, among which______ proposes an extremely specific connection between physical and oral gesture.
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