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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第八十六条 违反国家规定，非法生产、经营、购买、运输用于制造毒品的原料、配剂的，处十日以上十五日以下拘留；情节较轻的，处五日以上十日以下拘留。
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“作为一名基层全国人大代表，乡亲们的声音是我反映社情民意、提出相关建议的重要依据。”薛志龙说。