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[A] He is a taxi driver.[B] It’s about 1200 kilometers.[C] At seven.[D] Not far from here.[E] 200 kilometers per hour.[F] He teaches us history.[G] We learn English at school. What does your uncle do

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One of the most widely used routing protocols in IP networks is the Routing Information Protocol(RIP)．RIP is the canonical example of a routing protocol built on the (71) algorithm．Routing protocols in internetworks differ slightly from the idealized graph model．In aninternetwork，the goal of the routers to forward packets to various (72) ． Routers running RIP send their advertisement about cost every (73) seconds．A router also sends an update message whenever an update from another router causes it to change itsrouting table． It is possible to use a range of different metrics or costs for the links in a routing protocol．RIP takes the simplest approach，with all link costs being equal (74) Thus it always tries tofind the minimum hop route．Valid distances are 1 through (75) ．This also limits RIP torunning on fairly small networks．

A. distance vector
B. link state
C. flooding
D. minimum spanning tree

具有抗菌及扩张冠状动脉作用的是

A. 紫草素
B. 丹参醌Ⅰ
C. 大黄素
D. 番泻苷A
E. 大黄素蒽酮

有如下的类模板定义： template＜typename TYPE＞ class MyClass TYPE n； public： MyClass(TYPE k)；；其中构造函数MyClass用的值初始化数据成员n。因此在模板类体外，构造函数MyClass应定义_____。

静态联编所支持的多态性称为__多态性，动态联编所支持的多态性则称为_多态性，动态多态性由___来支持。