The change to agar was a marked improvement. The jelly is so effective that it is still an invariable ingredient in what is known today as the “Koch’s plating technique” or the “culture plating method.” As Koch himself noted in 1909: “These new methods proved so helpful…that one could regard them as the keys for the further investigation of microorganisms…Discoveries fell into our laps like ripe fruits.”
经过深入细致的实地调研，习近平总书记针对现实存在的问题，为扶贫开出了“精准”处方，有效指导打赢脱贫攻坚战。
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