成为原因的

Plant of the orchid family because commercial value is high and those who cause hill civilian and lover is excessive collect with manage, the one; that makes the main reason that orchid species is in severe danger on the other hand, because factitious development is a mountainous area, if give birth to the fell trees of selva to wait formerly, the destruction that causes zoology environment; is belonged to plus plant of the orchid family, planted distributinging belt is narrow, reach its oneself is progenitive and not easy, to living the environment asks to compare other plant slashing, make it becomes world biology to protect one of centers that organize an attention.

兰科植物由于商业价值高而引起山民和爱好者的过度采集与经营，成为兰花物种濒危的主要原因之一；另一方面，由于人为的开发山区，如原生热带雨林的砍伐等，引起生态环境的破坏；再加上兰科植物属、种的分布带狭窄，及其自身繁殖不易，对生存环境要求比其他植物苛刻，就使它成为世界生物保护组织注重的中心之一。

However, the complicated influence of economic environment and social factor, accounting information has already distortedly become one and cured chronic illness not healed for a long time, dissect the reason, how manage, have already become the problem that industry of our country has needed badly being solved.

然而 ，复杂的经济环境与社会性因素的影响，会计信息失真已成为一个久治不愈的痼疾，剖析原因，如何治理，已成为我国业界亟需解决的问题。

By the examination of MRI, histopathology, and the caculation of survival rate and percentage of patency, the viability of graft status of autograft tracheas wrapped in one-side sternomastiod muscule flap and two-side sternohyoid muscle flap based on different pedicle, effects of neck muscle associated with bFGF on length of autografts, and limit of warm ischemia time on tracheal allograft before cryopreservation were evaluated in rabbits.

肿瘤、先天性疾病、炎症或其他原因引起的气管狭窄，切除病变气管行气管端端吻合术是最理想的方法。而长段气管切除术后，则需要行气管重建。20世纪以来随着免疫学的发展，肾脏、心脏等脏器移植已在临床应用成为可能，人们注意到气管移植的重要性。因此，气管移植成为长段气管缺损重建的方向，其面临的主要问题是移植气管的再血管化、免疫抑制、供体的来源与保存等。

Firstly, more and more countrymen especially in the poor areas are disclosed under the health risk, and the illness brings the heavy economic burden to them, which is the one of the main reason of the poverty in the country. Secondly, the another main reason of poverty caused by illness is the undercapitalizing on the health human capital, and the lack of investment includes two aspects: one is individual and family, another is government. Thirdly resolving the lack of investment on the health is the key part of the long-term layout, Conquering the Poverty of the Country, which will be realized by Chinese government and be needed the both investing by the individual and family and government.

本文针对我国农村地区存在的&看病难&、&因病致贫&现象，通过文献综述以及问卷调查的方法，提出了这样几点结论：首先中国农村地区尤其是贫困农村地区越来越多的农民暴露在健康风险之下，疾病给农民带来了沉重的经济负担，因病致贫正成为我国农村致贫的一个主要原因；其次因病致贫的主要原因是农民的健康人力资本投资不足，而健康投资不足又包括了两个重要主体——农民个人和家庭、政府对健康的投资不足；第三缓解因健康投资不足造成的因病致贫是实现&中国战胜农村贫困&长远规划的关键之所在，需要农民个人和家庭、政府共同加大对健康的投资。

This is mainly based on the following two reasons: First of all transactions today will become tomorrow一手房potential second-hand houses, the existing stock of the end of the potential to become the next real volume; the second in respect to the housing needs of people in decision-derived escalation of prospective home buyers would choose the same region of the housing, in accordance with chain of home transaction client survey, the proportion accounted for 45%.

这主要是基于以下两个原因：首先，今天的交易将成为明天一手房潜力二手住房，现有库存的结束，可能成为未来真正的量；第二个方面的住房需求人在决策中产生的升级置业时会选择同一区域的住房，根据链家交易客户调查，这一比例占45 ％。

In a database the concept of an example might change along with time which is known as concept drift When the concept drift the classification model built by use of old data is unsuitable for classify new data Therefore concept drift has become a hot issue in data mining in recent years Although many algorithms had been proposed to resolve this problem they can not provide users with the reason of concept drift However a user might be very interested in such rules For example doctors want to find what makes disease change; researchers want to know the reason of the variety of the weather; and decision makers would like to understand why a customer's shopping habit change In this thesis we propose a Concept Drift Rule mining Tree called CDR-Tree to solve this problem CDR-Tree can not only find the rule of concept drift also build the prediction model for both old and new data at the same time

无论在大型资料库或现实生活中，同一资料样本的概念有可能会随著时间的递移而改变，也就是产生所谓的概念漂移。当样本发生概念漂移时，由旧有资料所建构的分类模组将不再适用於预测新获得的资料，因此，近年来概念漂移已成为资料探勘中一项热门的研究议题。虽然已有？多学者提出不同的技术来解决概念漂移的问题，但是这些方法都是利用修正或重建的方式来产生适合新资料的预测模组，并无法提供造成概念漂移的原因。然而对使用者而言，其感兴趣的可能正是这些引起概念漂移的规则，如医生可能想了解引起疾病变化的主因、学者会想要知道气候转变的规则、或是决策者想找出顾客购物习惯改变的因素等。因此，本论文提出概念漂移规则探勘树( Concept Drift Rule mining Tree )，简称CDR-Tree，来解决这个问题。CDR-Tree不但能探测出造成概念漂移的主要原因，亦能同时建立新旧资料的预测模组以供决策者运用使用。

The classical Roman law established an obligatio - contractus system with formalism and numerus clausus as the key features of contract; the medieval glossators accepted this model and redefined the contract with the doctrine of causa; the French law family continued this tradition and made the doctrine of causa the...

古典罗马法以形式主义和类型法定为契约概念的特质，构建了债一契约的制度模式；中世纪注释法学家遵循这一模式，以原因理论重构了合同的概念，这一传统为法国法系继受，使原因理论成为破译其合同概念及相关制度设计的密码；在德国，自然法理论、理性法学和历史法学结亲，以法律行为理论重组合同的要素，使其含义在历史上再一次发生根本性断裂；20世纪以后，制度的变迁又催生了新的合同说明模式。

Often,at the evening meal ,a group of boys and girls from various parts of the country or the world will happen to meet at the same hostel.they may put their food together and prepare a dinner with many kinds of dishes.sometime a program will be organized after the meal,with dances,songs,or short talks followed by a question period,one can learn a lot of things about other places,just by meeting people who come from those places.for this reason,a few weeks spent"hostelling"can just be as useful a part of one's education as classes in school.

通常，在晚饭时，一群来自全国各地或者世界各国的男孩和女孩会在相同的旅馆相遇。他们会把他们的食物放在一起，用各种盘子准备一顿晚餐。有时，晚饭后还会组织一些唱歌跳舞或者回答问题的活动，人们可以从这些活动里学到其他地方的很多事情仅仅是通过认识从那些地方来的人。因为这个原因，在旅馆里待的几周可以成为像在学校上课一样成为一个人有用的受教育途径。

And there can be no doubt, but that moveables of every kind became sooner appropriated than the permanent substantial soil: partly because they were more susceptible of a long occupancy, which might be continued for months together without any sensible interruption, and at length by usage ripen into an established right; but principally because few of them could be fit for use, till improved and meliorated by the bodily labor of the occupant; which bodily, bestowed upon any subject which before lay in common to all men, is universally allowed to give the fairest and most reasonable title to an exclusive property therein.

并且毫无疑问，每种可带走的东西比长久稳定的土地更快的被占用：部分的原因是它们更容易长期的占有，可以持续数月而不会觉察到中断，最后通过使用而成为一种确定下来的权利；不过主要的原因还是它们很少能够适合使用的，直到通过占有者的身体劳动得到改善；这种亲自施于任何之前为所有人共有的物品的劳动，普遍的允许给与这些物品最公正和最合理的排他性的财产资格。良好的人性，恰当的理性，和对上帝的信仰。规则的美在于简单，个性的美在于丰富，语言的美在于逻辑。

Many enterprises in China have realized the importance of 'Execution' and that the most basic reason of causing the right strategic target unimplemented lies in lacking of executive ability. It has become the most concerned topic for entrepreneurs and managers about how to promote executive ability This strong concern and deep research on executive ability really bring the improvement on management result for enterprises some time.

我国企业纷纷认识到&执行&的重要性，认识到致使正确的战略目标成为&纸上文章&的最根本原因在于缺乏执行力，如何提升企业执行力成为企业家和管理者最关心的话题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。