Preemption of the lessee in the system, too much emphasis on a legal logic sink into a cycle of logic can not be a good tenant preemption system to achieve it's social value and legal value.

在研究承租人优先购买权制度时，过于执着于法律逻辑必然陷入逻辑的怪圈，不能很好的实现承租人优先购买权制度自身的社会价值与法律价值。

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Urban water supply network is a major component of the water supply system. A good pipe network and the management of urban water supply will be directly related to the social and economic benefits.

城市供水管网是供水系统的主要组成部分，良好的管网运行和管理，将直接关系到城市供水的社会效益和经济效益。

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Through analyzing the problems in coal production, a shaft operation control system has been developed and a set of rule has been edited, which has achieved good economic and social benefit.

通过分析煤炭企业生产管理中存在的问题，研究了《矿井作业流程操作控制系统》，并制定了《矿井作业流程操作控制试行规程》，其在阳煤三矿具体应用过程中，获的经济和社会效益显著，具有推广应用价值。

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The bottom line is clear: broadening the tax base to remove the social and industrial policies that have eroded the tax system is a good step toward a simpler tax system that promotes more growth.

FORBES: Tough Politics Are the Barriers To True Tax Simplification