入门级 MacBook：多方消息显示，苹果正在测试搭载 A 系列芯片的低价 MacBook 方案，目标价位或下探至 600 美元区间；
公开资料显示，曾燕红曾是一名中学教师，为了鼓励学生她敢于追梦，给自己定下了攀登珠峰的目标。
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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.
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