Article
物質文明的將來 - The future of civilizing material life

Subject matters: 新聞 - news,
Language level: Baihua

Persons:
梓生 Zi Sheng (Author)

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Article
辨認血蹟的新法 - New ways of identifying bloodstains

Subject matters: 新聞 - news,
Language level: Baihua

Keywords: general knowledge,

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辨認血迹的新法 - A new method of identifying blood