Credit ratings In the s&P rating system, AAA is the best rating. After that comes AA, A BBB. BB.B. and ccc The corresponding Moody's ratings are Aaa. Aa,a. Baa, Ba.b. and caa Bonds with ratings of BBB (or Baa) and above are considered to be investment grade

MATLAB语言是美国 Mathworks公司研制开发的大型计算软件,自1985年问世 以来,特别是1993年4. Windows版本的出现,使得 MATLAB语言的使用获得了巨 大的发展。它的强大的矩阵处理与运算功能、丰富的图形绘制能力深受用户的青 睐。控制领域的研究者与工程技术人员对此给予了极大关注,国际上众多的知名学 者在此基础上先后开发出一系列的相关工具箱(toolbox),如控制系统工具箱 (Control System Toolbox)、神经网络工具箱(Neural Network Toolbox系统辨识 工具箱(Systerm Identification Toolbox)、最优化工具箱(Optimization Toolbox)、鲁棒控制工具箱(Robust Control Toolbox)等,以及集成在 MATLAB上的 面向结构图的系统分析平台 Simulink

The kinetic energy of a rotating system looks similar to that of a

This International Standard specifies requirements for a quality management system where an a)needs to demonstrate its ability to consistently provide product that meets customer and applicable

nontoxic goiter Toxic goiter adenoma adenocarcinoma

Mechanical Engineering as a Profession 1、 Introduction Scientists study the world as it is, engineers create the world that never has been What is engineering Engineering is the art of applying scientific and mathematical principles, experience, judgment, and common sense to create things that benefit people In other words, engineering is the process of producing a technical product or system to meet a specific need

第一节旅游资源的分类 第二节旅游资源综合评价 第三节旅游资源综合评价方法 第四节旅游资源调查方法

Content Pure exchange system The existence of Walrasian equilibrium The first theorem of welfare economics The second theorem of welfare economics Exchange with production

第一节政策保障体系 第二节市场保障体系 第三节财经保障体系 第四节人力资源保障体系 第五节环境生态保障体系

一、旅游资源的概念与特征 二、旅游开发的内容与原则 三、旅游规划的概念与内容