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Agar’s low viscosity also makes it easy to pour into Petri dishes, and its transparency permits observation of microbes growing on its surface.7 Also aiding in this is its low syneresis (extrusion of water from the gel), guaranteeing less surface “sweating”: Once a plate is inoculated, bacterial colonies stay in place and do not mix.
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斯特恩聲稱在中國人脈極廣。2011年一封電郵中,他似乎稱自己與時任全球最大保險公司之一平安集團總裁張子欣(Louis Cheung)是朋友,並與前國家主席江澤民孫子江志成熟識。他聲稱見過前總理朱鎔基之子朱雲來 。。heLLoword翻译官方下载是该领域的重要参考