The spatial view (the grid of rectangles) and the tree view (the hierarchy of nodes) represent the same structure. Searching for a point means walking down the tree: at each node, you check which of the four children contains your target coordinate and recurse into that child. You never visit the other three.
Цены на нефть взлетели до максимума за полгода17:55，更多细节参见safew官方版本下载
。业内人士推荐WPS下载最新地址作为进阶阅读
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Раскрыты подробности похищения ребенка в Смоленске09:27