（作者单位：北京大学考古文博学院）
However, Koch never credited the Hesses for their discovery of bacteriological agar, perhaps because, at the time, he failed to recognize its importance. Even after he received the insight about agar from the Hesses, Koch stuck with gelatine for years. In 1883-84, during his first medical expedition to Egypt and India to investigate cholera, he tried and failed to grow the cholera bacterium on gelatine media in the hot climate of Cairo (despite using a half-open fridge for incubation), only succeeding in the colder winter of Calcutta.，这一点在91视频中也有详细论述
В Санкт-Петербурге завершился матч 19-го тура Российской премьер-лиги (РПЛ) между «Зенитом» и «Балтикой». Петербуржцы выиграли со счетом 1:0. Об этом сообщает корреспондент «Ленты.ру».。业内人士推荐51吃瓜作为进阶阅读
Don Lemon pleads not guilty in Minnesota church protest case。Line官方版本下载对此有专业解读