Therefore, this paper selects urban logistics resources for the study.

因此，本论文选择城市物流资源作为研究对象。

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This paper selects some issues in planning region logistics system to study.

本文对区域物流系统规划中的若干问题进行了研究。

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This paper selects the features of text by using LSI and GA(Genetic Algorithm).

本文采用潜在语义索引（LSI）和遗传算法（GA）进行文本特征提取。

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