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When such poetry was brought to England it was still being handed down orally from one generation to another, and the constant presence of alliterative verse , or consonant rhyme (today's newspaper headlines and marketing abundantly use this technique such as in Big is Better ) helped the Anglo-Saxon peoples remember it.

这类诗歌传入英格兰时，仍然是遵循口头继承的传统，辅音押头韵的大量存在也帮助了盎格鲁萨克逊民族记忆这些诗歌。

During the postgenomics era the information about genomic sequence and gene functions provides a new foundation for evolutionary biology and ecology As the first whole-genome sequenced plant Arabidopsis thaliana and its wild relatives have played a critical role in understanding the evolution of genomics and speciation Both A halleri and A lyrata are closely related to the model species A thaliana A halleri ssp gemmifera occurs in northeastern China Japan and Taiwan; while its sister A halleri ssp halleri is mainly distributed in Europe Geographical barriers such as Tienshan Mountain Range isolate these intraspecific sisters Likewise A lyrata ssp kamchatica and ssp lyrata occur in East Asia and North America respectively Such distribution patterns seem to be consistent with allopartic speciation The comparison between ancestral and extant polymorphism by multilocus can be informative about the population genetics of speciation In this study we collected and analyzed DNA sequences of 98 genes from four wild relatives of A thaliana A halleri ssp gemmifera A halleri ssp halleri A lyrata ssp kamchatica and A lyrata ssp lyrata The ancestral states of these four species were compared to each other in terms of level of genetic variation However the ancestral species at the time of speciation were substantially more polymorphic than the extant geographical populations The observations are not fully compatible with speciation by strict allopatry At some species pairs parapatric speciation seems more reasonable in speciation of Arabidopsis The 98 gene sequences are also used for the congruence test between gene genealogy and species phylogeny Only 28 genes support the species phylogeny but there are 23 genes supports another major genealogy { lyrata} thaliana Based on the phylogenetic position change of A lyrata ssp kamchatica and Ks value for each species pair suggested the recent directional gene flow between A halleri ssp gemmifera and A lyrata ssp kamchatica

阿拉伯芥是第一个完成基因体定序的开花植物，其基因体资讯提供植物学研究的重要依据；在解析阿拉伯芥属物种的亲缘关系以及种化机制等重要的演化议题时，阿拉伯芥近缘的野生物种自然成了不可或缺的关键；跟阿拉伯芥近缘的物种包括A halleri及A lyrata，其中A halleri ssp gemmifera主要分布於中国东北、日本以及台湾，与近缘的A halleri ssp halleri其分布於欧洲隔著天山及大陆的障蔽，而A lyrata ssp kamchatica主要分布於东北亚及台湾，与分布於北美五大湖的A lyrata ssp lyrata被北极圈所分隔，这样的分布模式暗示异域种化的可能。藉由多基因分析比较祖先物种与现生物种遗传歧异度的相关可提供讯息探讨种化时期的族群遗传结构，本研究针对A halleri ssp gemmifera、A halleri ssp halleri及A lyrata ssp kamchatica、A lyrata ssp lyrata四个物种，两对互为亚种的姊妹群，以阿拉伯芥为外群进行研究，在四个物种完成98个同源基因的分子序列，利用套装软体MCMCcoal来估算祖先物种的遗传变异，亦估算现生物种的核苷酸歧异度，观察到？多物种配对中祖先物种遗传多型性大於现生物种DNA歧异度，显示异域种化模型并无法完全解释阿拉伯芥属物种的种化模式，在某些物种配对间邻域种化模式应比异域种化更为可能；在基因树与物种树的比较，98个基因片段的亲缘模式只有28个是与已知物种树一致的，有23个基因其树状图支持{ lyrata} thaliana的型式，藉由kamchatica位置的变化以及估算各物种配对间的平均同义置换率，推测在A halleri ssp gemmifera与A lyrata ssp kamchatica间具有近代的单方向基因交流。

The properties of the hybrid, such as greater vigor and adaptability, are retained in the allopolyploid in subsequent generations and such organisms are often highly successful.

这种具有高度生活力和适应性的杂交在异源多倍体中被保留，而且可以成功的遗传下去。

At the same time, from the angle of complexity of public information resources management it comprehensively proves insufficiency of the government public information service such as discriminatory service, mandatory service, asymmetrical service and rough service, which not only increase the government management cost but also lead to the structural form rupture of public information resources management at various levels, such as the government and the public, super and subordinate governments, central and local governments, and consequently break the almightiness mythology of government monopoly in public information resources management.

同时，从公共信息资源管理的复杂性角度全面论证了政府公共信息服务的不足，如差别服务、强制服务、不对称服务以及粗糙服务等不仅造成了政府管理成本的攀升，而且也导致政府与公众之间、上下级政府部门之间以及中央与地方之间等不同层面公共信息资源管理的结构型断裂，并在事实上打破了政府垄断公共信息资源管理的全能神话。

Such as: 5052,3003,1100,1060,1070 high, such as aluminum.

5052、3003、1100、1060、1070高纯铝等。

Many of them make such a show as to completely hide their leaves behind a cascade of colour, Some of the most popular, such as Alyssum and Ajugas, have no need of rock-garden conditions or care-good drainage and an open position are all they require.

他们中的许多人提出这样的节目，以完全隐藏自己留下了一连串的颜色，其中最流行的，如庭荠和Ajugas ，有没有必要岩花园条件或照顾好排水和一个开放的立场都它们需要。

Such portfolios would not only avoid hedge-fund fees, but would also escape the risk of backing a mismanaged fund, such as Amaranth, which lost 65% of its value in September.

用这样的组合不仅能剩去对冲基金手续费，还规避了可能会购买管理失当的基金的风险，例如 Amaranth 公司，它在九月份损失掉自身价值的65%。

We had found that heat absorbents can be used as effective flame retarding additives to those explosives whose heat decomposition mechanisms are mainly decided on temperature, such as AMATOL, while char forming promotors to those explosives in which molecules exsist char forming group, such as TNT, RDX, HMX, etc.

文中推导出的点燃公式和实际情况基本相符，本文还用负催化原理，热点燃的稳态理论以及链反应原理解释了出现自熄的原因并导出了出现自熄的判据。

Such a display is most suited for use in high ambient lighting conditions where space is at a premium, such as in the cockpit of an aircraft.

这种显示器(80)最适用于空间特别宝贵的高环境照明情况，例如飞机的驾驶舱中。

It is important that studying gamma ray spectrometry of field rocks and soil in the earth抯 crust. Their energy range are mainly 30-3000keV, they contain abundant information of natural radioactive nuclides, such as uranium, thorium, potassium, etc, and of artificial radioactive nuclides from nuclear engineering activity, such as cesium, americium, cobalt, etc, and of the results in interaction between gamma ray and earth抯 crust.

国外近年已经生产出大于256道的伽玛射线能谱仪，但由于仪器应用滞后于仪器研究，且仪器稳谱未完全解决，获取全谱信息困难，加之对低能谱段的认识不足等原因，致使野外应用仍然滞留在仅限于测定铀钍钾含量的伽玛能谱测量水平上。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。