在研发强度计算公式中，分别作为“分母”和“分子”的营业收入和研发投入构成关键因子。
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.”
，这一点在搜狗输入法下载中也有详细论述
Related internet linksNational Trust
"Because we can, because we're young, we push ourselves too hard, we burn the candle at both ends, she said, which created problems that arose when people where in their 50s.
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