本书是北京师范大学刘凌云教授和郑光美院士主编的《普通动物学》(第3版)的修订版,是“高等教育百门精品教材”研究项目的成果之一,是普通高等教育“十一五”规划教材。 本书的编写力求能反映本学科的基础理论、新技术、新成就,并适用于教师教学和学生自学,具有中国特色,第4版突出体现以下3个特色: 1.以动物演化为线索,突出进化历史中发生重大质变的事件(例如细胞、体制、胚层、体腔、体节、脊索、脊椎、四肢、体温等)及其与动物组织、器官、系统出现或复杂化的相关性,使学生能结合动物进化发展的内在联系来掌握动物类群的主要特征及其发生、发展的主要规律。 书中对各类群及其代表动物的选取,以演化上、经济上和科学研究上有重要意义的为重点,并以我国动物为代表。 全书着重加强基础。同时根据动物学发展的现状,适当
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A great triumph of twentieth-century physics, the theory of quantum mechanics, is now nearly 40 years old, yet we have generally beegiving our students their introductory course iphysics (for many students, their last) with hardly more thaa casual allusioto this central part of our knowledge of the physical world. We should do better by them. These lectures are aattempt to present them with the basic and essential ideas of the quantum mechanics ia way that would, hopefully, be comprehensible. The approach you will find here is novel, particularly at the level of a sophomore course, and was considered very much aexperiment. After seeing how easily some of the students take to it, however, I believe that the experiment was a success. There is, of course, room for improvement, and it will come with more experience ithe classroom. What you will find here is a record of that first experiment. . Ithe two-year sequence of the FeynmaLectures oPhysics which were givefrom September 1961