With these changes bandwidth use dropped to around 4.5 KB/sec 3. Much improved, but we can still do better.
Minor road updates (like those in map data that might be a few months old if you're using maps from different regions) usually result in negligible cost differences for shortcuts, so the pre-calculated values remain effective.
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// 1. 建堆：从最后一个非叶子节点开始向上调整
（二）按照其他纳税人最近时期销售同类货物、服务、无形资产或者不动产的平均价格确定；