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This was not the first time that microbiologists experienced problems with agar. A phenomenon called “The Great Plate Count Anomaly” baffled researchers in the early 20th century when they observed that the number of cells seen under a microscope didn’t match the actual number of colonies growing on an agar plate. Investigating this discrepancy, researchers found agar itself to be the culprit: when nutrient broths are heated with agar during boiling, harmful byproducts (hydroperoxide) can form due to the reaction of agar with phosphate minerals contained in the media. Researchers can avoid this by autoclaving agar separately from the nutrient broth, or by reducing the amount of agar used.，这一点在旺商聊官方下载中也有详细论述
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起初，狗显然有些不适应，尤其是晚上回到房间以后，它便时不时要嚎叫一番。而它一有动静，隔壁的狗有时也要跟着吠，甚至于它嚎够歇菜后，“邻居”们又起了兴致，叫个没完。我一度担心，狗在这种环境里，能睡好么？当然，事实证明我想多了，夜深了，狗趴在沙发上睡着了，大概还在做梦奔跑，腿一抽一抽的。。关于这个话题，heLLoword翻译官方下载提供了深入分析