重要

The studying all by oneself is an important means to push people to educate, replace the foundation education and play an important role in the course of education reform.

自主学习是推动人们终身教育、变革基础教育的重要手段，在课程教育改革中占有重要的地位。

The purpose of this is not to use our issue to influence the all-important eighth consecutive Most Important Election of Your Lifetime.

的目的，这是不使用我们的问题影响到所有重要的八分之一，连续最重要的选举，您的一生。

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。

Consequently, this essay choose the "Z-Score Model", which was developed by Altaian, the famous American expert in risks management, to analyze and evaluate the listed companies' credit risks in China and to verify its efficiency to Chinese stocks market. The " Z-Score Model" is an innovation in the evaluation of companies' credit risk in the United States' banks, which is now being used widely. If the model is also applicable in Chinese stocks market, it will be significant in both theories and practices.

因此，本文选用作为美国商业银行信用评估方法的一次重要创新的，目前仍被美国商业银行广泛使用的，由美国著名信用风险管理专家Altman建立的"Z评分模型"(Z-Score Model)来对我国上市公司的信用风险状况进行实证研究，验证其在我国股票市场的有效性程度，如果能证明"Z评分模型"同样适用于我国证券市场，并将其改造为更适合我国上市公司的信用风险分析模型，将不仅具有很大的理论价值，而且也具有十分重要的现实意义。

Alternaria is a dematiaceous mitosporic fungus with a wide variety of habitats and geographical distribution.

链格孢是半知菌暗色丝孢菌中重要的一类真菌，该属真菌种类多，寄主范围和地理分布广泛。95%以上的种能兼性寄生在植物上，是重要的植物病原菌。

In "three first" hospitals, the quantity of the outpatients is very large; the time of blood drawing is some how centralized; the items of the laboratory sheets are complex and the time of results turning out is different. there for, how to drawing blood accurately and manage the laboratory sheets scientifically is a very important problem needed to bi resolved for the ambulant clinics and blood drawing centers in the hospitals. and how to built a suit of scientifically management method system is an important task for every hospital.

对于"三甲"级医院由于门诊病人流动量大，采血时间集中，化验单项目多而复杂、且出结果的时间长短不一的特点，因此，对于血液标本的正确采集及化验单的科学合理等问题已成为各医院门诊护理工作及中心采血室急待解决的一项重要的工作，如何建立一套科学的管理方法与制度是各医院必须要解决和研究的重要课题之一。

Through primary analysis on the characteristics of ammonifiers growth and function, ammonification is a possibly important origin of ammonia in Suzhou Creek water body. The studies tested that adding K2HPO4 can reduce ammonifiers function. It maybe has important reference value for ecosystem resume in Suzhou Creek.

通过对苏州河氨化菌的生长特性和功能活性的初步分析，氨化作用可能是氨氮的重要来源之一，研究还表明，添加磷酸氢二钾可以降低苏州河氨化菌的转氨活性，原理尚不清楚，对苏州河的生态恢复可能具有重要的参考价值。

The high school medium is sort of tool for the communication and broardcast for the interior schoolyard and the campus to the outside society, it is also an important part for the study, work and life of the ampleness teachers and students and an important carrier of the high school media propaganda works, at the same time, is has big affect for the behavior mode, value orientation, political attitude, emotion development and moral conception for the high school students.

高校校园传媒是校园内部及学校与社会进行交流、传播信息的工具，是广大师生学习、工作、生活的重要部分和高校宣传舆论工作的重要载体，对高校大学生的行为模式、价值取向、政治态度、心理发展、道德观念都能够产生重大的影响。

AMT is a very important power train system in vehicle, so a fault diagnostics system for it is very necessary.

AMT系统属于车辆中最为重要和关键的动力驱动系统，对其进行故障诊断系统的开发具有重要的意义。

These results suggested that many organella could all develop into amyloplast, variation of amyloplast envelope resulted in amylopast proliferation, RER played an important role in synthesis and deposition of protein, ER showed many functions during endosperm development, intercellular space and plasmalemma invagination played an important role in transportation of nutrients, degeneration of starchy endosperm nucleus was a special PCD, Ca〓 and phosphatases played an important role during endosperm development.

上述结果表明：多种细胞器可以趋同发育成淀粉质体，淀粉质体增殖来源于其被膜的活动，粗面内质网在蛋白质的合成与积累中具有重要作用，内质网在胚乳发育中具有多种功能，胞间隙和质膜内陷在营养物质的运输中具有重要作用，淀粉胚乳细胞核的衰退是一种特殊形式的编程性死亡，Ca〓和磷酸水解酶在胚乳发育中起重要作用。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷