8年攻坚，我国历史性摆脱绝对贫困，创造了又一个“彪炳史册的人间奇迹”。
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.”，详情可参考WPS下载最新地址
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