同时也根据这些资料，弄出了一个又一个的小沙盘出来，这也是乌桓之乱的经验教训。若是当时有足够多的沙盘，让严绍对整个北海甚至是整个青州都有足够的了解，那么在对付乌桓人的时候，便可以采取更主动的姿态一一一一尽管当时严绍已经干的很是不错了。

不过真正大规模的进行测绘工作，还是在严绍当上了青州牧以后。成了青州牧后，严绍清楚自己接下来的任务是什么，派出了大量的探子到了临近的各个州，这其中尤其是以冀州、兖州和徐州为主。这也是最有可能与严绍爆发冲突的三个州。

探子和间谍其实没什么区别，常人的思考当中，间谍的工作通常都和007有些类似，就算不是这样，起码也是高端大气上档次的那种，实际上间谍的工作涵盖面真的很广。不仅有高端的007系列，也有其他的并不是那么很高端的工作，这其中就包括了之前提到的测绘。

早在清代，乃至是鸦片战争之前的乾隆时期，就已经有外国人在广州等通商地区进行秘密的测绘工作，到了一战和二战时，更是如此。

等到了后世，经常有非法测绘人员被抓获的消息。

没办法，这年头卫星确实多了，可是很多东西还是需要人用脚丫子去走，去测量的...

有了详细的数据，将来的战争之中也就可以更容易掌握主动权。

严绍派出的这些探子，不仅是需要打探一些情报，也需要进行测绘工作。

在严绍当上青州牧的这几年里，这些探子为严绍提供了大量的情报，严绍州牧府的其中几个房间里，堆满了临近州的沙盘。都是根据探子们传回来的情报绘制的，这也让严绍在与对手们交手时，更能

嗯嗯，不好意思，后面的一定尽快补上！！！

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