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问题 单项选择题

到2014年，配电台区总保护器和中级（分支）保护器做到（），总保护、中级保护、末级保护能正确动作。

A.安装到位

B.应装必装

C.检查到位

D.测试到位

答案

参考答案：B

单项选择题

The Border Gateway Protocol (BGP) is an interautonomous system. （1）protocol. The primary function of a BGP speaking system is to exchange network（2）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 （3） interdomain routing. These mechanisms include support for advertising an IP （4）and eliminate the concept of network class within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including（5）of AS paths. These changes provide support for the proposed supernettting scheme.

3（）

A.confirmless 

B.connectionless 

C.answerless 

D.classless
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填空题

他正在和朋友liáo______天儿呢。
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