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问题 单项选择题

客运专线铁路区间正线或站内正线，列车行车速度300km/h＜v≤350km/h，线间最小距离为（）mm。

A、4400

B、4600

C、4800

D、50000

答案

参考答案：D

填空题

护士将读数为38.8℃的体温计未经甩动，直接用来测量某个人的体温。若这个人实际体温为37.2℃，则体温计的读数为     ℃
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单项选择题

Open Shortest Path First(OSPF)is a (8) routing algorithm that (9) work done on the OSI IS-IS intradomain routing protocol. This routing, as compared to distance-vector routing, requires (10) processing power. The Dijkstra algorithm is used to calculate (11) OSPF routing table updates only take place when necessary, (12) at regular intervals.

8（）

A．distance-vector

B．link-state

C．flow-based

D．selective flooding
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