第一百零四条 检查的情况应当制作检查笔录，由检查人、被检查人和见证人签名、盖章或者按指印；被检查人不在场或者被检查人、见证人拒绝签名的，人民警察应当在笔录上注明。
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.，更多细节参见夫子
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And as for their noise-cancelling features, Mangino says "The ANC on this pair of headphones is just right, too. It isn't the best I've ever experienced, which isn't entirely surprising since the ear cups aren't particularly snug; that's great for comfort, but less effective for passive noise cancellation. But I find that its ANC easily blocks out the noise of busy city streets and the clink and clatter of my local coffee shop."