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It is predictable that the incidence of arterous dilative diseases as AAA and AD will increase yearly. All the series of problems are not sensitive to medication, while the only management is surgery.

另外，我国一些大城市实际上已经进入了老龄社会，在未来的几十年内，整个国家也会进入与西方发达国家年龄构成相似的老龄社会，可以预测腹主动脉瘤和主动脉夹层等动脉扩张病的发病率将会逐年提高。

In another development, the population and the labor force have moved dramatical from farms to cities,from the fields to the factories, and above all to service industries, thus providing more personal and public services.

出现的另一种新情况是，人口和劳动力大量从农村迁移到城市，从农田进入工厂，尤其是进入服务行业，从而为个人和公众提供了更多的服务。

In Jul,2004, I chose LangFang dope company in charge of marketing 、 human resource and financial staffer instead of the colleague for personal development, during this time I have learned much more which can't acquire in the colleauge, In Aug,2006 I quitted this job and went forward to JianPan candy co.,ltd Hohehot Municipality branch, I was with responsibility for distribution 、 human resource 、 advertising-task, I counld't brought my financial knowledge into practice totally because the complex job, I want to enage in accountant employment so I chose to be off at that time , in the process of studying and working ,I got many good friends, I learn much more from them and I'm maturer than before, many thanks from them and the God.

2004年7月，由于个人发展的原因，我离开了学校，进入了廊坊立邦涂料有限公司内蒙古办事处，我负责销售行政及财务工作。在此期间，我学到了很多新的东西，在学校里学不到的东西。2006年8月，我离开了立邦，进入了箭牌糖果中国有限公司呼和浩特分公司，我负责销售行政及人事、广告工作，由于工作比较繁杂，无法进行深入的财务学习和实践，后来，我选择了离开。因为我一直想从事专门的财务工作，并以此发展下去。但是，在这几年的学习和工作中，我结识了很多好朋友，从他们的身上我学到了很多很多，我也成熟了很多。所以我感谢他们，感谢上天让我们相识。

This review focuses on the development and means of the modification of polymeric gene vectors making them have multifunction, i.e. the ability to maintain stability outside of cell, the ability of cell entrance, endosome escape, and the ability of nuclear membrane traversing. The main challenges remain and the future direction of polymeric vectors research are discussed.

本文在分析基因治疗过程的基础上，详述了基因载体应具有的4种基本功能－在细胞外保持稳定的功能、进入细胞的功能、逃离溶酶体的功能和进入细胞核的功能，并详细介绍了有关基因载体功能化修饰的方法和目前国际上的进展情况，总结了高聚物载体目前存在的主要问题及未来的发展方向。

This review focuses on the development and means of the modification of polymeric gene vector making them have multi-function—the ability to maintain stability outside of cell、the ability of cell entrance、the ability of endosome escape and the ability of nuclear membrane traversing, at last, we highlight the main challenges that remain and the future direction of polymeric vectors research.

本文在分析基因治疗过程的基础上，详述了基因载体应具有的四种基本功能——在细胞外保持稳定的功能、进入细胞的功能、逃离溶酶体的功能、进入细胞核的功能，并详细介绍了有关基因载体功能化修饰的方法和目前国际上的进展情况，最后本文总结了高聚物载体目前存在的主要问题及未来的发展方向。

Part 1: Permeability of Exogenetic BDNF through placental barrier of pregnant rats and blood-brain barrier of fetus with transient uteroplacental ischemiaObjective To investigate the potential of BDNF to penetrate the placental barrier and get into the fetus and pass through the blood-brain barrier of fetus to play neuroprotective function in the condition of transient ischemia.

第一部分：外源性脑源性神经营养因子在宫内缺氧环境中对胎盘及胚鼠血脑屏障通透性的实验研究目的：探讨外源性脑源性神经营养因子在宫内缺氧环境下能否通过胎盘屏障进入胎鼠体内，再通过胎鼠血脑屏障进入胎鼠脑组织而发挥其生物功能。

Because individual space is in in forum, a lot of person nods your name to be able to enter your individual airspace, should some more floriferous kongfu decorates individual space, if design very beautiful can attract the store that buys the home to enter you.

个人空间因为在论坛里，好多人点你的名字就会进入你的个人空间，要多花些功夫装修一下个人空间，如果设计的很美就会吸引买家进入你的店铺。

And I brought you into the land of the fruited field, To eat its fruit and its goodness. But you came and defiled My land And made My inheritance an abomination.

2：7 我领你们进入肥美之地，使你们得吃其中的果子和美物；但你们进入的时候，就玷污我的地，使我的产业成为可憎之物。

Since in the researched 27 years, FDI entered mainly into manufacture industry, so that we can say that FDI crowed out the growth of service industry indirectly in China in the long-run. In 1994, China singed the GAST .

由于在研究的27年时间内，FDI主要进入制造业，也可以说进入制造业的FDI对服务业增长产生长期的间接挤出效应。1994年中国签署了世界服务贸易总协议。

At the beginning, the goals were a lot for 2004, but the injuries appeared in key moments to ruin a year, in which, besides, he managed to get to two Master Series finals and to the historic semifinals of Roland Garros, being defeated by no other than the Champion Gast鏮 Gaudio.

在刚开始的时候，David对2004赛季有很多的目标和期望，但是伤病总是出现在关键的时刻，摧毁了这一年。但在2004中，David还是进入了两个大师杯的决赛和历史性的进入法网的四强，仅仅败给了后来的冠军Gaudio。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。