It includes five aspects: it is a sense of history and history recollection;

它的内涵包括五个方面：它是一种历史感、历史回忆；

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Its cost of maintaining includes five aspects: cost of policy coordination, financial cost, administration cost, holding cost and social transaction cost.

它的维持成本包括政策协调成本、财政成本、管理成本、储备成本和社会交易成本五个方面。

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The main contents of text includes five aspects of the following:(1) In this paper, China's present construction market of the credit loss was analysis, summarized the reasons for these problems.

本文的主要内容包括以下五个方面：（1）通过对目前我国建筑市场存在的信用缺失问题的分析，归纳产生这些问题的原因。

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