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问题 解答题

一条公路，已修是未修的20%，又修了6千米，这时已修的是未修的25%，这条公路长多少千米？

答案

6÷（

1
5
-
1
6
），

=6÷

1
30
，

=180（千米）；

答；这条公路长180千米．

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The Border Gateway Protocol (BGP) is an interautonomous system. ______ protocol. The primary function of a BGP speaking system is to exchange network ______ information with other BGP system. This network reachability information includes information on the list of Autonomous System (ASs) that teachability information traverses. BGP-4 provides a new set of mechanisms for supporting ______ interdomain routing. These mechanisms include support for advertising an IP ______ and eliminate the concept of network class within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including ______ of AS paths. These changes provide support for the proposed supernettting scheme.

A. reservation B. utilizationC. aggregation D. connection
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