其实这个答案一直潜藏在科学文献中，70年代，卡普兰就报道了丰富的环境可以提高神经元的数目。

The answer has been lurking around in the scientific literature since the 1970's when Michael Kaplan reported that an enriched environment enhances the number of new neurons.

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元分析是一种新的将定性分析与定量分析相结合的文献综合方法，与传统的文献综述相比，其具有诸多优势。

Metaanalysis is a new method to synthesize literature. It combines qualitative analysis and quantitative analysis and has greater advantages over the traditional literature review.

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文献建构、元数据、数字图书馆、知识管理等成为图书馆学情报学体系中新的知识生长点。

Document architecture, metadata, digital library, knowledge management and so on have become new knowledge growing points of the system of library science and informatics.

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