The article investigates and analyzes hainan middle schools sports traditional event volleyball coaches ' age , educational background , professional job title , teaching years and teaching method by using the questionnaire and interview , and also gives mange relevant suggestions for some problems in it 摘要通过问卷法和访问法对海南省中学体育传统项目排球教练员队伍的年龄、学历、职称、任教年限、任教途径的现状调查与分析，并针对其中存在的若干问题提出相应的建议。
On the basis of literature review , we first identify the main risks in the china " s life insurance industry . the mange risks of life insurance are divided three types : the first type is the risk of environment including the risk of period of operating cycle , the risk of market competition , the policy risk and catastrophic risk ; the second type is operational risk , including decision risk , location risk of branch of insurance and so on . the third type is man - made risk , including the morals risk , psychological risk and so on 在对现有文献和研究成果总结回顾的基础上，本文首先分析了中国寿险业面临的主要风险，寿险的经营风险分为三大类：第一类是环境性风险，包括经济周期风险、市场竞争风险、政策风险、巨灾风险；第二类是经营性风险，包括决策风险、险种定位风险、定价风险、业务管理风险、准备金风险、投资风险、分保风险、退保风险、应收保费风险、财务管理风险、破产风险；第三类是人为性风险，包括道德风险、心理风险、逆选择风险、从业人员素质风险。
Adopting the method of top - down , the virtual memory is divided into memory mange related unit ( segment unit and page unit ) and protection mode related unit ( protection test unit , debug test unit and exception detect unit ) . data buses and control bused are designed separately for all of the units . vhdl codes are written and simulated Amex86的虚拟存储器采用自顶向下的设计方法，把虚拟存储器划分为地址管理相关单元(又包括分段单元和分页单元) 、保护模式相关单元(又包括保护测试单元、调试异常单元利异常检测单元等) ，分别确立其数据通路和控制通路，完成了vhdl的编码和仿真工作，通过测试程序仿真验证了其功能的正确性并测定了基本性能。
So it is very important to research related technique to develop complete courseware . this system is developed with the object - oriented language visual basic6 . 0 , basing on the summary of other cai softwares , and is applied in the universities , and can be used to make and mange coursewares and testbases of many subjects altogether 因此研究相关技术开发完备的cai教学软件具有非常重要的现实意义。本课题是在总结了相关教学软件的基础上，使用面向对象的语言visualbasic6 . 0开发的，应用于大中专院校的，适合多门学科的教学课件及考试题库的制作、建立、管理与使用的通用平台。
