1927年9月，鄂西秋收暴动的第一枪——当阳瓦仓起义打响，极大地震慑了土豪劣绅和国民党反动派。抗日战争爆发后，宜昌成为中共湖北省委、湘鄂西区党委机关所在地，领导湖北、湘鄂西地区人民顽强抗日。
It is difficult to know exactly when the shift from gelatine to agar occurred. As often happens for scientific breakthroughs, agar was likely adopted incrementally alongside the use of other growth media. In 1913, for example, the first diagnosis of Serratia marcescens as a human pathogen was made by growing it on agar as well as on potatoes.
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Andrew Robinson reviews five of the best science picks.
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