Multiplicity of signals and diversity of signaling pathways exist during the establishment of mycorrhizal associations together with the regulation of symbiosis - specific genes expression . this mechanism of signal recognition and transduction related with development process of the symbiont was reviewed at the molecular level 在菌根共生体建立过程中存在信号分子的多重性和信号通路的多样性以及共牛体特异基因的表达调控,从分子水平上揭示了菌根整个发育过程。
During the evolution , the main featu res of the aim of secondary education were : first , the aim of secondary education got in touch well with society requirement ; second , the aim of secondary education varied but tended to attach importance to cultivating high quality talent ; third , the society chauvinism of education aim 在演变的过程当中，中等教育的目的主要呈现出以下几个特点：第一，中等教育目的与社会需求联系紧密；第二，中等教育的目的具有多重性，但趋于注重培养具有高质量的人才；第三，教育目的的社会本位性强。
The diversity of policy goal is determined by grain ' s particularity and complexity , at the course of market - oriented reform , grain policy aspires after the economic efficiency and equity for the goal of grain policy in china , at the same time food security and increasing income are made up of the primary contents 粮食的特殊性和中国粮食体制的复杂性决定了政策目标的多重性，粮食市场化改革进程中，政策目标不仅仅要追求经济效率和公平，而且要保证粮食安全和粮农收入稳定。
This dissertation construes the objectives of ecotourism in terms of two angles ( conservation and development ) , three dimensions ( environmental , economical , social and experience dimensions ) , three entities ( tourism industry , the reserve and local community ) and the complicated relationships among them . according to the author , the stakeholders are confronted with dilemma 在目标方面，文章从保护和发展两个角度，环境、经济、社会、体验四个纬度，保护区、旅游业和当地社区三个方面分析了生态旅游目标的多重性，并指出其间存在既对立又协调的矛盾关系。
The thesis takes finance risk as research object which studies up on the theory system , statistic measurement models and policy of china macroscopic finance risk . the author applies lots of data in analyzing and evaluating china macroscopic finance risk from the establishment of market economic system , and tries to explore the discipline and characteristic , then bring forward theoretical source and policy suggestion for the strategic management of national macroscopic finance risk . the main contents is as follows : the first chapter defines risk , finance risk and macroscopic finance risk , then concludes the basic characteristic of macroscopic finance risk , involving the complexity and multiplicity of forming reasons generated latency , accompanying of finance development and severity of educing crisis . finally , it discusses forming mechanism of macroscopic finance risk from three aspects , such as general source , informational source and international background represents following action and gearing utility in the process from risk to crises 本文以宏观金融风险为研究对象，研究我国宏观金融风险的理论体系、统计度量模型和政策，运用大量的统计数据对市场经济体制建立以来我国宏观金融风险状况进行了分析和评价，试图探索我国宏观金融风险的变化规律和形成原因的特殊性，为国家宏观金融风险的战略管理提出理论依据和政策建议。其主要研究内容如下：首先，从风险、金融风险和宏观金融风险等定义出发，总结了宏观金融风险形成原因的复杂性和多重性、生成的潜伏性、与金融发展的相随性和引发危机的严重性等基本特征，从金融风险产生的一般根源、信息根源和国际背景三方面论述了宏观金融风险形成的机理，最后阐释了从金融风险到金融危机的传导机制。
Eight kinds of characteristics of urban road nodes were summarized and analyzed . these characteristics include traffic flows ’ arriving at multi - distributing , arriving traffic volume varying in periods , turn demand of arriving vehicles , velocity varying , stopping and waiting , traffic conflict , time delay and bottleneck . the urban road is overground traffic facility which lies in the city with network form 本文总结分析了城市道路节点的八种特征,这些特征包括交通流到达分布的多重性特征、到达交通量的周期性变化特征、到达车辆的转向需求特征、速度变化特征、停车排队特征、交通冲突特征、时间延误特征和交通瓶颈特征。
The chapter 3 analyzes the composition of some important space in farmer house which include central hall , kitchen , bedroom , staircase , and bars , etc . i inquire into the subtle relationship between life style and the form of space , clarify the peculiar meaning of those functional spaces . three distinguishing feature of farmer house are referred : 0 multiplex in function ; ( 2 ) regionalism in construction ; diversity in form 第三章，主要分析了农民住宅中的几个重要的空间? ?堂屋、厨房、卧室、楼梯及谷仓，探讨了生活方式与空间形态之间的微妙关系，认清了这些功能空间与一般意义上的客厅、厨房、卧室等之间的区别，提出农村居住建筑的三个特性：功能上的多重性，构造上的地方性，形式上的多样性。
Based on the above analysis , the author points out that to develop ecotourism is to realize multiple objectives and to establish a symbiosis system , hence it ' s necessary to adjust the condition and the media of symbiosis , and to change the structural and behavior modes . in fact , it ' s a process to establish a new profit earning and interests contribution system and to develop a new institution by compromises and trade - offs among the stakeholders 论文指出，发展生态旅游，要实现多重性的目标，获得一个协调的共生系统，需要对共生单元之间的共生条件、共生界面、组织模式和行为模式进行调整，需要通过各利益相关者之间的利益让渡、 “讨价还价” 、相互妥协、共同协作建立一个新的利益获取和分配机制。
And then , the study probes into the legal position of teachers in public schools . based on this , the paper approaches the relationship between public schools and teachers in the main body of the study . the result shows that the relationship between public schools and teachers comprises three aspects : the administrative relationship with the nature of administration , the relationship of equality based on labor contract and the relationship of internal management in schools 第四部分，在上文分析的基础上进一步推理，得出本文的结论：我国公立中小学校和教师之间的法律关系是一种具有复杂性和多重性的法律关系，受行政法和民法的调整，包括具有行政属性的管理关系、基于合同的平等的劳动关系和组织内部的管理关系。
The calculation results show that the correlation between the multiplicity of intermediate mass fragments n ( subscript imf ) and total number of charged particles n ( subscript c ) is a sensitive observable for probing the isospin - dependent in - medium nucleon - nucleon cross section , but the isospin effects of symmetric potential on n ( subscript imf ) is not obvious in the chosen energy region 计算结果表明在所选能区，中等质量碎片的多重性与带电粒子总数之间的关联是提取介质中核子核子碰撞截面的灵敏观测量，而此时对称势的同位旋效应却不明显。
