According to the SQL Standard, the method to evaluate hierarchical or bi-directional data is the Recursive Common Table Expression (RCTE).

根据SQL标准，评估分层或双向数据的方法为递归通用表表达式(RCTE)。

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BACKGROUND: DNA Microarrays have become the standard method for large scale analyses of gene expression and epigenomics.

背景：DNA微阵列已经成为进行基因表达和表观组学的大规模分析的标准方法。

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The article introduction the distinguishes the expert system that can standard PSC rank based on the Rough Sets, the knowledge expression and the inference method.

文章主要介绍基于粗集方法的普通话等级判别专家系统的基本构成、知识表达方式及学习推理方法。

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