HanChunyu,aChinesebiologistandassociateprofessorofHebeiUniversityofScienceandTechnologyinnorthChina,hasretractedhiscontroversialpaper,NgAgo-gDNA,fromNatureBiote
China's e-commerce giant Alibaba has filed initial public offering (IPO) document to the U.S. Securities and Exchange Commission (SEC) with plans to raise one billion U.S. dollars, according to SEC information and well-informed sources.
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