This paper USES an event study approach to examine market reaction to the divestiture announcement based on different motivations of asset sales.

本文运用聚类分析与事件研究法对我国上市公司不同资产出售动机的市场反应进行研究。

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A new international study, however, suggests this conventional approach may not be helpful, and could actually increase recurrent stroke risk - at least in the first few months after the first event.

但一项新的国际研究表明，常规方法或许并非有益，甚至有可能增加中风再发危险- - -至少在首次中风后前几个月如此。

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This paper presents a purpose-driven approach for event generation based on vulnerability correlation and proves its correctness and efficiency by a case study.

提出一种基于弱点关联的目的驱动的事件生成方法，通过一个实例证明算法的准确性和高效性，为生存性分析系统进一步研究与设计奠定基础。

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