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Agar was first introduced into the laboratory in 1881. Since then, microbiologists have depended on agar to create strong jellies. When microorganisms are streaked or plated onto this jellied surface and incubated, individual cells multiply into distinct colonies that scientists can easily observe, select, and propagate for further experiments. Many of the most important findings in biological research of the last 150 years or so — including the discovery of the CRISPR/Cas9 gene-editing tool — have been enabled by agar.4 Agarose, a derivative of agar, is also essential in molecular biology techniques like gel electrophoresis, where its porous gel matrix separates DNA fragments by size, enabling researchers to analyze and isolate specific genetic sequences.
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对于不关注足球的朋友来讲，其实很难理解一支中甲球队主场的入驻对一个区域的利好。只有真正关注足球的人，才懂得。足球，是世界上关注度最高的运动，欧洲的很多城市因足球而享誉世界。例如：米兰以其时尚而闻名，但许多人也因为国际米兰和AC米兰这两支著名足球队而认识这座伟大的城市；很多人去马德里，就是为了在那里看一场皇家马德里足球俱乐部的比赛；既然都到了西班牙了，那就从马德利飞一趟巴塞罗那……中国的足球，虽然距离世界杯还很远，但很多城市依然有着超白金球市。
中国式现代化，民生为大。新征程上，那句誓言须臾不可忘记——
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