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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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Finding the closest point
His station leader role involves managing supplies, health and safety, and training. McKenzie also has to provide emotional support to the team when issues like isolation and interpersonal conflict in close quarters get too much.
兆威机电1月30日披露的聆讯后资料显示，其也是中国首家推出商业化高自由度灵巧手产品的企业，其灵巧手产品商业化进程位居全球前列。