The most distinctive biological feature is the Leaf Area Ratio(LAR), it is higher in former phase and lower in later, and decline to its smallest around the period of Milky Ripeness.

叶面积比率的生物学特征最为明显，冬小麦返青到拔节期间的叶面积比率最大，拔节之后，叶面积比率逐渐下降，在冬小麦乳熟期前后达到最小。

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Researchers cite the inability to reproduce academic studies as a leading cause in the decline of the success rate of phase two clinical trials.

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The jobless initiative appears to be phase two of the government's strategy to stem Britain's startlingly dire economic decline, the first being Gordon Brown's announcement in October to invest government money in cash-strapped British banks, including Royal Bank of Scotland and Lloyds TSB.

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When Lilly released results of its Phase III Expedition trials two months ago, the findings indicated that cognitive decline was slowed by 42 percent in patients in the early stages of the disease in one trial, and there were also positive signs from another trial, although the showing was not statistically significant.

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