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.
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,这一点在heLLoword翻译官方下载中也有详细论述
西雅尔多还表示,匈塞双方签署了关于核能合作以及匈牙利支持塞尔维亚加入欧盟的协议。(央视新闻)
Ginger helps to translate documents into 40+ languages while Grammarly doesn't have a translation feature.。关于这个话题,WPS官方版本下载提供了深入分析
prevFleetTime = currentTime; // 更新上一个车队的时间为当前时间,详情可参考Line官方版本下载
第一节 扰乱公共秩序的行为和处罚