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71.
日本综合型社区体育俱乐部基本特征、发展模式和面临的问题 总被引:14,自引:0,他引:14
日本综合型社区体育俱乐部是日本社会经济发展的产物。它以体育活动的生活化和交流化为特征,由政府行政、财政的积极支持和民间参与形成了其发展的模式,综合型社区体育俱乐部如何进行自主经营,以及其法人资格如何确定成为俱乐部必须解决的主要问题。 相似文献
72.
对于少儿乒乓球初学者,球拍选择、球拍握法、站位和基本姿势是四个基本学习要素。对此,教师应有足够的重视。一、球拍的选择球拍的选择包括两个方面:一是对不同性能球拍的选择,二是对球拍重量弹性的选择。(一)对不同性能球拍的选择一般情况下,应以选用反胶海绵拍为... 相似文献
73.
74.
Naturally occurring plants in agroecosystem evidently play an important role in ecosystem stability. Field studies on the ecological effects of native plants conserved in orchard and their resistance to adverse climatic stress, and soil erosion were conducted from 1998 to 2001 in a newly developed Changshan-huyou (Citrus changshan-huyou Y.B. Chang) orchard. The experimental area covered 150 ha in typical red soil hilly region in southeastern China. The experimental design was a randomized complete block with six combinations of twelve plant species with four replications. All species used were native in the orchard. Plots were 15×8 m2 and separated by 2 m buffer strips. Precipitation, soil erosion in rainstorm days and aboveground biomass of plant community when rainstorm days ended, soil temperature and moisture under various plant covers during seasonal megathermal drought period, antiscourability of soil with different root density under various simulated rainfalls were measured. Plant cover signifi 相似文献
75.
题目:(2003年江苏省南京市)对水有关问题的探究。今年6月5日世界环境日的主题为:“水——20亿人生命之所系”。请你参与下列问题的讨论。(1)图1是市场上出售的一种活性炭净水器示意图。这种净水器可以除去水中的难溶性物质,同时利用活性炭的_______作用除去臭味和一些溶解的杂质。 相似文献
76.
Naturally occurring plants in agroecosystem evidently play an important role in ecosystem stability. Field studies on the ecological effects of native plants conserved in orchard and their resistance to adverse climatic stress, and soil erosion were conducted from 1998 to 2001 in a newly developed Changshan-huyou (Citrus changshan-huyou Y.B. Chang)orchard. The experimental area covered 150 ha in typical red soil hilly region in southeastern China. The experimental design was a randomized complete block with six combinations of twelve plant species with four replications. All species used were native in the orchard. Plots were 15×8m2 and separated by 2 m buffer strips. Precipitation, soil erosion in rainstorm days and aboveground biomass of plant community when rainstorm days ended, soil temperature and moisture under various plant covers during seasonal megathermal drought period, antiscourability of soil with different root density under various simulated rainfalls were measured. Plant cover significantly decreased the daily highest and mean soil temperature and its daily variation in hot-drought season, but there was no significant difference of the alleviation among various plant covers. Plant covers significantly increased the soil moisture in seasonal megathermal drought period. Better moisture maintenance and soil erosion reduction was found when the plant species numbers in cover plant communities increased from one to eight. Higher root density in plant communities with higher species richness increased significantly the antiscourability of the soil. It was suggested that conserving plant communities with diversified native species could produce the best positiveecological effects on citrus orchard ecosystem stability. 相似文献
77.
人们的言语交际遵循着关联准则,无论是语境假设还是最佳关联都受到发话方的控制,关联错位是一种普遍现象,而这一切在商业广告中体现得尤为明显,无论什么类型的商业广告都反映了这一趋势或现象. 相似文献
78.
我国运动竞赛制度安排的理论探讨 总被引:2,自引:0,他引:2
我国运动竞赛制度安排是一种操作性很强的制度安排.它通过竞赛设置、竞赛约束、竞赛安排具体方法,来约束和激励运动技术的发展.通过减少运动技术发展过程中在比赛方面存在的种种不确定性,来保证我国运动员在世界重大比赛尤其是奥运会中取得优异的运动成绩. 相似文献
79.
把网球技战术训练理论通俗化,用我们习以为常的成语为论题,把看似与网球技战术能力学习无关的成语,作为点题,可能更便于网球爱好者对所言技战术关键点形象性的记忆。用这样一种方式来解释网球技术和战术能力挺蒿需要注意的要点,说明网球技战术能力获得过程中存在着往往被我们疏略的内容,这是因为在一定程度上,网球智慧和生活智慧有相似性, 相似文献
80.
本文运用文献资料法、逻辑分析法等研究方法,对我国电视体育频道专业化背景下的栏目化进行研究。首先,梳理了我国电视体育节目发展的三个阶段,然后在此基础上,对电视栏目化与电视体育频道关系、品牌栏目在专业体育频道的核心竞争力、体育赛事在专业体育频道的作用以及赛事栏目化的必要性等进行了简要分析。 相似文献