This was especially vexing to physician and bacteriologist Robert Koch, who, in seeking to culture his bacteria, “bent all his power to attain the desired result by a simple and consistently successful method,” wrote bacteriologist and historian William Bulloch in his 1938 book, The History of Bacteriology. “He attempted to obtain a good medium which was at once sterile, transparent, and solid” and got some results with gelatine.6 But gelatine is easily digested by many microbes and melts at precisely the temperatures at which the disease-causing microbes Koch wanted to study grow best.
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。业内人士推荐搜狗输入法2026作为进阶阅读
Елизавета Городищева (Редактор отдела «Экономика»)。91视频对此有专业解读
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这两位博导提到的“博士考核入学”，就是博士“申请-审核”制。早在2007年，复旦大学就在医学博士招生中进行了“申请—审核”制度的尝试，2008年，上海交通大学在博士生招生中拿出100个名额进行试点。2013年3月，教育部等部门联合发布《关于深化研究生教育改革的意见》，明确指出博士研究生选拔要逐步推行“申请-审核”制。到2014年，北京大学、清华大学、复旦大学、厦门大学、山东大学等七十余所院校试行这一制度。当前，“申请—审核”制已经在我国大部分高校的博士招生中实施。