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问题 选择题

美国参议院于10月3日程序性通过了“2011年货币汇率监督改革法案”立项预案。此案将人民币利汇率问题进一步升级。下列关于“人民币汇率”的说法正确的是（   ）

①人民币汇率上升，意味着人民币贬值

②人民币汇率上升，意味着人民币升值

③保持“人民币汇率”不变，对我国经济有利无弊

④从根本上看，“汇率”的确定是由我国经济运行规律决定的

A．②③

B．①④

C．③④

D．②④

答案

答案：D

多项选择题

我国《企业会计准则》规定，会计期间分为（）。

A.年度

B.半年度

C.季度

D.月度

E.日度
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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．status

B．search

C．state

D．research
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