我的 25 年初几乎都在纠结这些问题。当我想选择一个研究方向，马上一系列疑问就冒出来：这个方向有没有前途？会不会不容易发文章？抑或是前途不明？
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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.
17:15, 27 февраля 2026Мир。服务器推荐是该领域的重要参考