B-trees force you to pre-commit to a query shape, which is at odds with the idea of ad-hoc Top K queries.
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，详情可参考雷电模拟器
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The old continent remains one of the world’s strongest regions in science, engineering, and industrial depth. Its universities and research institutions consistently produce frontier knowledge. For example, the European Union now accounts for 21% of global generative AI research publications, placing it firmly in the world’s top tier of AI science.