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In 1874, Fanny Angelina married physician and bacteriologist Walther Hesse, an investigator of air quality and, specifically, air-borne microbes. In the Winter of 1880-81, Hesse became a research student with Koch in Berlin and experienced firsthand the difficulty of growing microbes on gelatine and the other growth media used at the time.
。搜狗输入法2026对此有专业解读
Without the help of the specialist cameras, the bats are near impossible to spot, lost in the darkness.
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