The distinctive feature of this thesis lies in its analysis of a learning theory based on positivistic study of firsthand materials with support of theories in the field and emphasis on the learners ' s achievement 灵活地运用适应性学习策略，科学地组织和设计教学环节是解抉学习适应性难题的重要途径之一。随着现代远程技术的飞速发展，适应性学习将成为zi世纪网络教育发展的趋势。
Firstly , in this paper , i introduced importance of using computer to support group decision , character , goals , technology level of gdss , and development and defect of gdss ; secondly , i discussed background , development , character and application of xml / rdf technology ; and then i introduced ontology technology , and integration , model method and application of it ; what ' s more , i introduced foundation , layer structure , language description of ontology language oil ; in the end , by employing ontology / oil technology in gdss , i introduced hardware and software structure of gdss , and through practising in the natural gas scheduling decision support system in emergence , i explained model base and rules base of oil - based gdss , furthermore i introduced decision procedure of gdss 本论文首先详细介绍了用计算机支持群体决策的必要性，群决策支持系统的特点、目标、技术层面，及群决策支持系统的发展和存在的不足；其次介绍了xml rdf技术的由来，发展，特点和应用领域；然后着重介绍了ontology技术，以及它的集成、建模方法和应用；再次介绍了领域模型语言oil的基础、分层结构、语占描述及它对rdfo ）的扩展；最后，把01 。 toiogy 01l技术引入到群决策支持系统中，介绍了群决策支持系统的软硬件结构，并结合在天然气调度决策支持系统项目中的实践，说u了基于0几的群决策支持系统的模型库及推理规则库的建立，还介绍了群决策支持系统的抉策流程。
On the basis of her experiences in enagaging in marine management for many years as well as the problems in theory and practice encountered in the course of formulating the law of sea area use management , the author makes analysis , summary and discussion of china ' s management of sea area use and its legal regime in this paper 三、我国海域使用管理制度的目标、基本任务和实施方式我国海域使用管理及其法律制度的建立，既有海域的客观自然环境条件恶化的原因，也有发展完善海洋管理的社会要求。正是这些原因抉定了海域使用管理制度及其《海域法》的宗旨目标、基本任务和实施方式方法。
