In reality, this setup is mostly useful for learning and the novelty.
青年工人胡嘉洲说：“回去之后，我还要再多学习、多了解宪法法律知识。”
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The pruned nodes (in red) represent entire regions of space that the algorithm never examines. The points inside those regions are never checked. Compare the "Nodes Visited" count to the total number of points. The quadtree is doing far less work than a brute-force scan.
连续担任第十三届、第十四届全国人大代表的黄茂兴，长期从事经济理论、区域经济等研究。双重身份让他意识到，代表履职不能只停留在书斋，必须走到一线去。