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问题 单项选择题

校正PNa表时，采用PNa4定位液定位，其［Na+］为（）mg／L

A.23

B.0.023

C.0.23

D.2.3

答案

参考答案：D

解答题

300米3000毫米3千米30厘米．______．
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单项选择题

Which routing select algorithm is described below According to a kind of fix regulation, the select algorithm of route works and has nothing to do with the network information newly.

A．Static Routing Algorithm

B．Dynamic Routing Algorithm

C．Centralized Routing Algorithm

D．Distributed Routing Algorithm
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