The algorithm also visits children in order of distance to the query point. This means it checks the most promising quadrants first, which tends to find a good candidate early and enables aggressive pruning of the remaining quadrants. Without this ordering, the algorithm would still produce the correct result, but it would prune fewer nodes.
那麼，在這麼多選擇中，究竟哪種才是最有效、具有科學根據的語言學習方式呢？
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（二）政府拨付和接受社会捐赠的资金、物资的管理使用情况；