Science & Environment
并且，随着宁夏、青海的首家麦当劳门店陆续开业，麦当劳现已完成了中国所有省级行政区的覆盖。
。关于这个话题，WPS官方版本下载提供了深入分析
February 25, 2026
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.