Genotypic differences of phosphorus(P) efficiency among 194 Brassica napus L. cultivars were investigated under pot culture in acid soil with a method of two step screening typical cultivars.

采用两步筛选法（即苗期干物质筛选和全生育期产量筛选）在酸性黄棕壤上对194个甘蓝型油菜品种进行了磷效率的筛选。

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Results There was a significant difference in lower limb exercise and step function between the rehabilitation group and control group(P< 0 . 01).

结果综合康复治疗组的下肢运动功能、步行能力在治疗后显著改善，与对照组相比有显著性差异（P<0 01）。

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The level of serum glucocorticosteroid was higher in dead group and decreased step by step in survival group( P< 0 01).

循环血皮质醇浓度显示死亡组患者一直处于较高水平 ，而存活组呈进行性下降 （P< 0 0 1）。

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Besides sponsoring the Family Home in Vancouver, P&G decided to take an extra step, launching a campaign to provide special monetary support for mothers of U.S.athletes.

VOA: standard.2010.02.20

"The appointment of a new prime minister is another important step forward in the country's peace building process, " said Augustine P.

CNN: Somali president appoints prime minister