“因为你正在创作内容，正在编制免费的内容，社交网络要做的只是把广告放上去”，德勤研究部的保尔·李如是说。

"Because you're creating the content and you're making up the content for free, all that social networking has to do is put the ads next to it," says Paul Lee, of Deloitte Research.

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海藻糖在冷冻猪肉中的应用研究…李勤等。

Application of trehalose in chilled pork... li Qin et al.

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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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