但这两条路，都需要时间和金钱，而长春高新最缺的，恰恰是时间。
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Before agar, microbiologists had experimented with other foodstuffs as microbial media. They turned to substances rich in the starches, proteins, sugars, fats, and minerals that organisms need for growth, testing with broths, bread, potatoes, polenta, egg whites, coagulated blood serums, and gelatine. However, none worked particularly well: all were easily broken down by heat and microbial enzymes, and their surface, once colonized, became mushy and unsuitable for isolating microbes.。搜狗输入法2026对此有专业解读
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He did however reveal a key detail about bricks, Squire says.。业内人士推荐WPS下载最新地址作为进阶阅读