It has many characters, which just accord wi th the law of individual social function during the process to play the educational function.

图书馆所载知识的自主选择性、说理性和全面性等特点，使其教育功能的发挥过程恰好符合个人社会化的机制规律。

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In th is paper the meaning, principle and method of the evaluation on economy of the commodity housing were discussed. It will play a positive role to promote spreading this work.

本文就进行商品住宅经济性能评价的意义、原理、方法进行了探讨，对于推进我国商品住宅性能认定工作具有积极的意义。

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