Now, OsmAnd performs another Dijkstra search, but this time on the much smaller "base graph." This graph consists only of the border points and the pre-calculated shortcut values between them.
// 原因：先处理右侧元素（含循环部分），把结果存在栈里，供左侧元素直接使用
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6. Facebook Audience Insights (Audience Research)(Photo Credit:- Facebook Audience Insights
（二）违反国家规定，收购铁路、油田、供电、电信、矿山、水利、测量和城市公用设施等废旧专用器材的；