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.
正月里，内蒙古乌兰察布市卓资县黄旗滩村，家家户户门前都挂着大红灯笼，年味仍浓，这些灯笼是年前由村委会免费发放安装的。
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三十年前，秘鲁在恶性通胀与内战阴影中推进产权改革，经济一度重回增长轨道；三十年后，总统频繁更替、政治对立加剧、制度信任崩塌。德索托的名字，既象征一种发展理论的希望，同时也提醒我们：一个国家的命运，从来不只是经济学问题，更是制度能否持续运转的问题。
Science sleuths share their common-sense tips for sniffing out fishy articles.