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问题 单项选择题

从高层建筑物上随手往楼下丢弃坚硬物品，正落在楼下过路人头上的行为，属于（）。

A.故意行为

B.过错行为

C.道德行为

D.过失行为

答案

参考答案：D

解析：家庭或个人在日常生活中因意外事故造成他人人身伤害和财产损失的行为属于过失行为。

选择题

关于塔里木河的叙述，正确的是[ ]

A、受夏季风影响，6、7月份流量大

B、附近的农业被称为“河谷农业”

C、水量随气温的升高而增大

D、水源主要来自喜马拉雅山的冰雪融水

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单项选择题

Border Gateway Protocol(BGP) is inter-autonomous system ______ protocol. BGP is based ona routing method called path vector routing. Distance vector routing is not a good candidate for inter-autonomoussystem routing because there are occasions on which the route with the smallest ______ count is not thepreferred route. For example, we may not want a packet through an autonomous system that is not secure eventhough it is shortest route. Also, distance vector routing is unstable due to the fact that the routers announce onlythe number of hop counts to the destination without defining the path that leads to that ______. A router thatreceives a distance vector advertisement packet may be fooled if the shortest path is actually calculated throughthe receiving router itself. Link ______ routing is also not a good candidate for inner-autonomous system routingbecause an internet is usually too big for this routing method. To use link state routing for the whole internetwould require each router to have a huge link state database. It would also take a long time for each router tocalculate its routing ______ using the Dijkstra algorism.

A．connection

B．window

C．source

D．destination
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