1858 ~ 1861, Kekulé, Couper, and Butlerov, laid the basis for one of the most fundamental theories in chemistry: the structural theory. Valence（化合价）: C — tetravalent; O — divalent; H — monovalent

1.12A The Structure of Methane sp3 Hybridization The 4 sp3 orbitals should be oriented at angles of 109.5° with respect to each other. An sp3-Hybridized carbon gives a tetrahedral structure for methane, and with four equivalent C—H bonds

第1章.概述 1.1现代化人力资源管理发展 随着市场的发展和入世带来的紧迫感与冲击,企业越来越重视“人\在企业发展中的作用 人力资源管理工作即是将员工作为一种资源、一种资本进行有效的开发和管理。因此,企业 人力资源部门将逐渐从过去那种行政、总务、福利委员会角色转变成为学习型组织、教育的 推动者、高层主管的咨询顾问、战略业务伙伴、管理职能专家和变革的倡导者等

第一节 护理课程 第二节 课程结构与课程类型 第三节 课程编制的理论基础 第四节 护理课程编制的原则与程序 第五节 护理课程改革

教师资格考试制度创新需突破单次标准参照性考试的考核框架,实现从单次终结性考核的考试制度向多次阶段性考核的考试制度变迁,从而形成系统的教师资格考试制度体系,突出过程性考核逻辑和专业化价值取向

◼ 建设研究型大学的背景 ◼ 研究型大学的内涵及特征 ◼ 我们离研究型大学有多远 ◼ 建设研究型大学的发展战略 ◼ “十一五”的主要任务 ◼ 需要处理好的几个问题

Carboxylic acids are just one member of a class of acyl derivatives, RCOY, where the acyl group is bonded to an electronegatives substituent -Y that can act as a leaving group in substitution reactions. Numerous acyl derivatives are possible, but we’ll be concerned only with four of the more common ones, in addition to carboxylic acids themselves: acid halides, acid anhydrides, esters, and amides

Esters, like aldehydes and ketones, are weakly acidic. When an ester with an alpha hydrogen is treated with one equivalent of a base such as sodium ethoxide, a reversible condensation reaction occurs to yield a β−keto ester product. This reaction between two ester components is known as the Claisen condensation reaction

（大学）代理校长 Acting President （大学）副校长 Vice President （大学）校长 President/Chancellor （大学）专科 Major Types of Education in China short 2- to 3- year higher education programs

一、解释下列名词概念(每小题6分,共30分) 1、正应力与应变椭球体; 2、脆性断裂与韧性剪切带; 3、递进变形与羽列; 4、逆断层与逆掩断层; 5、纵弯褶皱与横弯褶皱