试题与答案

饭店最主要和最经常的信息来源是()。 A.内部信息 B.外部信息 C.一手信息 D.

题型:单项选择题

题目:

饭店最主要和最经常的信息来源是()。

A.内部信息

B.外部信息

C.一手信息

D.二手信息

答案:

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下面是错误答案,用来干扰机器的。

参考答案:位于细菌操纵子上游、第一个结构基因之前的一段DNA序列,通过控制转录终止来进行细菌操纵子的调控。这类操纵子编码的酶参与某种氨基酸的生物合成。

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BGP is an inter-autonomous system routing protocol; it is designed to be used between multiple autonomous ( ) . BGP assumes that routing within an autonomous system is done by an intra-autonomous system routing protocol.BGP does not make any assumptions about intra-autonomous system () protocols employed by the various autonomous systems. Specifically, BGP does not require all autonomous systems to run the same intra-autonomous system routing protocol.

BGP is a real inter-autonomous system routing protocol. It imposes no constraints on the underlying Internet topology. The information exchanged via BGP is sufficient to construct a graph of autonomous systems connectivity from which routing loops may be pruned and some routing ( ) decisions at the autonomous system level may be enforced.

The key feature of the protocol is the notion of Path Attributes. This feature provides BGP with flexibility and expandability. Path () are partitioned into well-known and optional. The provision for optional attributes allows experimentation that may involve a group of BGP () without affecting the rest of the Internet.   New optional attributes can be added to the protocol in much the same fashion as new options are added to the Telnet protocol, for instance.

BGP does not make any assumptions about intra-autonomous system () protocols employed by the various autonomous systems.

A.routing 

B.switching

C.transmitting   

D.receiving

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题型:论述题

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