Lead-in activities What is ethics in our country? Honesty and modest are two basic ethics in our country. A society with ethics is a society with prosperity, so is business. 2. By far, which country is the relatively clear country in the world? Why? Singapore. two possible reasons: near-perfect welfare system; high salary for all the working people

本讲主要内容： 数字签名的简介 基于RSA数字签名 基于离散对数数字签名 ElGamal数字签名 Schnorr数字签名 DSA数字签名 基于ECC数字签名

1.深入理解应力、应变的概念;熟练掌握虎克定律。 2.理解从变形协调、物性与静力学三方面分析由内力求应力的材料力学基本方法。 3.掌握横截面上正应力的一般表达式。 4.熟练掌握拉压杆横截面上正应力、平面弯曲正应力、斜弯曲正应力的计算与分布规律

1、掌握构件强度、刚度和稳定性的概念,明确材料力学这门课的基本任务和学习目的。 2、深入理解变形固体基本假设的内涵和意义, 3、准确理解分布内力的概念、弹性体受力与变形应满足的3个关系

第一节 微生物的能量代谢 第二节 分解代谢和合成代谢的联系 第三节 微生物独特合成代谢途径举例 第四节 微生物的代谢调节与发酵生产

本讲主要内容： 置换密码（列置换密码和周期置换密码） 代换密码（单表代换密码、多表代换密码和维尔姆密码） 典型传统密码的分析（统计分析法和明文-密文对分析法）

The hyde school In 1966, Joseph W. Gauld founded the first Hyde school in Bath, Maine in response to a system of education which hebelieved was failing its children because of conflicting priorities. His search for a new approach in education led to a program that valued attitude over aptitude, effort over ability, and s character over talent

5.1问题的提出和数学模型 一、引例:某企业生产I、Ⅱ两种产品,其生产的参数 如表中所示。在制定生产计划时要考虑如下内容: (1)依据市场反馈信息,I产品出现滞销,预测表明 ,两种产品的生产比例大致保持1:1为宜; (2)设备能力尚有机动的余地,B设备必要时可以加班, 但希望加班时间愈少愈好;A设备较为重要,所以既希望 能力能够被充分利用,同时又尽量少加班;

Objectives Students will be able to: 1. understand the main idea(cloning is a two- edged sword) and structure of the text; 2. appreciate the writing strategies employed by the author, 3. master the key language points and grammatical structures in the text;

Objectives Students will be able to: 1. understand the main idea (Bill Porter the salesman will never give in) and structure of the text (4 parts, 2 flashbacks); 2. appreciate the characteristics of journalistic writing; 3. grasp the key language points and grammatical structures in the text;