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Range queries ask "what's inside this box?" But sometimes the question is "what's nearest to this location?" This is the nearest neighbor problem, and you don't know how big your search radius should be. The nearest point might be right next to you or far away.，这一点在WPS下载最新地址中也有详细论述
Analysis: Labour’s worst fears realised，这一点在heLLoword翻译官方下载中也有详细论述
На Западе подчинили рой насекомых для разведки в интересах НАТО08:43
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