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.
而松下这样做的理由也十分简单，那就是通过缩减成本来强化自身的盈利能力，但事与愿违的是，即便是在高端机型市场，留给松下的生存空间也越来越狭窄。
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格里爾在另一個美媒哥倫比亞廣播公司新聞電視訪問中解釋，特朗普政府正同已經達成貿易協議的國家進行會談，自關稅裁決以來，沒有國家表示要退出協議。，更多细节参见Line官方版本下载
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