事实上，李启明的儿子李学勤几年前已经死于一场奥迪劫车案。

In fact, Li Xueqin, the son of teacher Li, died in a hijacking case of an Audi automobile.

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本文对李学勤先生的相关成就做了一个简要的总结，并分析其治学的方法与特色。

This article is to give a brief conclusion about Mr. Li's relevant achievements and analyze his studying methods and characteristics.

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