Unit One section a learning a foreign language I Greetings IL. Review: Let students say something about their experience of learning English in their junior and senior middle school II Start the new lesson

I Greetings Il. Review: the key words and phrases of Unit Two II Start the new lesson 1 Introduction: In this story, a son describes how shamed he felt as a youth when he walked down the street with his crippled father. The son did not like how people stared at them. His father never let on that he saw any of this. He was very active and enjoyed life

The key words and phrases of Unit Four: make up one's mind to, a chain of, range from to, focus on, be absorbed in, communicate with, take seriously I Start the New lesson AIDS is a disease that appeared in the United States more than 20 years ago. Since then

§9.1 概述 §9.2 二元物系的汽液相平衡

1、去掉二元体,将体系化简单,然后再分析。 2、如上部体系于基础用满足要求三个约束相联可去掉基础,只分析上部体系 3、当体系杆件数较多时,将刚片选得分散些,用链杆(即虚铰)相连,而不用单铰相连

2.1古典密码学体制 2.1.1定义和分类 一个密码系统( Cryptosystem)是一个五元组 (pc,k,E,D满足条件: (1)P是可能明文的有限集;(明文空间) (2)C是可能密文的有限集;(密文空间) (3)K是一切可能密钥构成的有限集;(密钥空间) (4)任意有一个加密算法和相应的解密算法k使得和∈E分别为加密

一、热的应用目的 皮肤上存在着温觉感受器,可以感受到热的刺激,热作用于人体表面,外周温觉感受器 和中枢热敏神经元兴奋,引起散热中枢的兴奋性降低,使血管扩张,血流加速,血液粘滞 度降低,从而达到治疗目的。 作用:保暖与舒适、减轻疼痛、促进炎症的消散和局限、减轻深部组织充血与肿胀、促 进伤口愈合

一、组成在三角形相图上的表示方法 二、液液平衡关系在三角形相图上的表示法 三、萃取过程在三角形相图上的表示 四、萃取剂的选择

华东师范大学：元素化学及无机物制备实验（讲义）化学反应热效应的测定、二茂铁的制备及检测

一、填空 1、内存又称为外存称为 2、内存条由以及少量等辅助元件组成