The author in this article from the crux of the analysis of several typical math classroom inefficient reasons, and proposed a corresponding improvement strategies.
本文中笔者就从几种典型症结分析数学课堂低效原因，并提出了相应的改进策略。
The article summaries the theory of asymmetric information and library services in the information asymmetries, analysis the forms and reasons of this Phenomenon, and make a series of strategies.
文章概述了信息不对称理论和图书馆服务中的信息不对称现象，并分析了高校图书馆读者服务中信息不对称的表现形式、存在原因，并提出了抑制措施。
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