Border Gateway Protocol(BGP) is inter-autonomous system （71） protocol. BGP is based on a routing method called path vector routing. Distance vector routing is not a good candidate for inter-autonomous system routing because there are occasions on which the route with the smallest （72） count is not the preferred route. For example, we may not want a packet through an autonomous system that is not secure even though it is shortest route. Also, distance vector routing is unstable due to the fact that the routers announce only the number of hop counts to the destination without defining the path that leads to that （73） . A router that receives a distance vector advertisement packet may be fooled if the shortest path is actually calculated through the receiving router itself. Link （74） routing is also not a good candidate for inner-autonomous system routing because an internet is usually too big for this routing method. To use link state routing for the whole internet would require each router to have a huge link state database. It would also take a long time for each router to calculate its routing （75） using the Dijkstra algorism.

75（）

A．table

B．state

C．metric

D．cost

根据《中华人民共和国环境影响评价法》的规定，下列关于建设项目的环境影响评价、的表述中不符合相关规定的是( )。

A．建设项目的环境影响评价文件，由建设单位按照国务院的规定报有审批权的环境保护行政主管部门审批

B．建设项目有行业主管部门的，其环境影响报告书或者环境影响报告表应当经行业主管部门预审后，报有审批权的环境保护行政主管部门审批

C．国家对建设项目的环境影响评价实行统一管理

D．环境影响评价文件中的环境影响报告书或者环境影响报告表，应当由具有相应环境影响评价资质的机构编制