Since of reestablishment in 1980s " , the life insurance industry has made rapid progress . compared with developed countries , we still have a long distance , especially in life insurance investment 我国现代寿险业的发展是上世纪80年代才起步，经过二十多年的发展，取得了骄人的业绩，但总的来说，与世界发达国家很大差距，寿险投资方面的差距更大。
As a kind of fragility ecosystem , it is necessary and important that the soil fertility , degeneration and reestablishment in karst circumstance are realized entirely . three representative karst counties in chongqing region are selected as sample sites in this research 作为一种脆弱生境，岩溶环境自然景观核心部位的土壤肥力及其退化理应引起人们的高度关注，因而有必要全面了解岩溶脆弱生境退化与恢复的关键环节与过程。
Coupling vegetation dynamics at multiple scales is essential to explore the mechanisms of water and sediment yield response to vegetation changes such as vegetation reestablishment , development , succession , distribution , and management practices - we reviewed literature on advances in studying the processes and mechanisms of the vegetation influence on runoff and sediment production in relations to vegetation growth , vegetation succession , vegetation patterns and distribution , as well as afforestation and deforestation 由于植被自身的生长发育以及受自然因素和人为干扰的作用，植被变化具有多尺度性；由于受流域水文环境的异质性和水文通量的变化性的影响，流域水文过程也同样具有多尺度性。
My essay , based on value chain theory of m . e . porter , analyzes problems in valuable activities of soes , then puts forward the thought of reestablishment the value chain of soes . my essay ' s emphasis is the essence , key and frame of establishing the value chain of soes , which is in chapter 4 . if the soes want to win 国有企业要在日趋激烈的竞争环境中立于不败之地，必须具备自己的核心竞争力，通过重构价值链来形成核心竞争力，这是构建价值链的本质；对国有企业的业务流程进行再造，优化企业的价值创造活动，是构建国有企业价值链的关键；企业的组织结构是价值链有效运行的架构。
So , in order to lower the disaster of flood , it is a good way to use the system of flood detention district , flood insurance , reestablishment etc . although there are some flood detention districts in some places in china , no perfect and operational flood hazard risk management decision support system is established now . we are searching some new thought of controlling and managing flood by risk management policy 通过本文的研究，主要在以下几个方面取得了进展： (一)以顺德防洪减灾工作作为背景素材，针对其旧有的信息系统，结合现代先进的防洪风险管理思想，融入作者对水利信息化建设的理解，从建立专业的地理信息系统空间数据库、属性数据库、查询系统的构建、专家预测系统建立等方面全面探讨。
