知情人士说，国防部击落无人机时并不知道这是由海关与边境保护局操控的。两位要求匿名的知情人士说，军方事先并未与联邦航空管理局协调使用激光系统事宜，事件发生后，该局周三接到通知。
Виктория Кондратьева (Редактор отдела «Мир»)
，详情可参考safew官方版本下载
This is the same idea behind binary search. In a sorted array, you compare against the middle element and eliminate half the remaining candidates. In a quadtree, you choose one of four quadrants and ignore the other three regions. Each level narrows the search space by a factor of four instead of two.。关于这个话题，heLLoword翻译官方下载提供了深入分析
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