夸克网盘
乐乐课堂初中化学课程合集涵盖了北京版、沪教版等多个版本的丰富内容，为处于中学阶段的学生提供全面的化学知识学习资源。
课程从基础的走进化学、物质组织的奥妙等主题出发，逐步深入到构成物质的微粒、化学反应的定量研究、金属、燃烧的学问等复杂知识板块。无论是想了解化学物质的基本构成，还是探索化学反应的原理，都能在这套课程中找到对应的讲解。
乐乐课堂的课程以生动有趣的讲解方式为特色，能够将抽象的化学知识转化为通俗易懂的内容，便于学生理解和吸收。课程通过一个个短小精悍的视频，对每个知识点进行细致剖析，适合初中阶段不同学习进度和能力水平的学生。无论是作为日常学习的辅助，还是考前的复习资料，这套课程都极具价值，助力学生在化学学习的道路上稳步前行。
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什么是化学.mp48.94MB2. 化学发展史.mp410.09MB1. 化学变化和物理变化.mp47.23MB2. 化学性质和物理性质.mp410.64MB3. 对蜡烛及其燃烧的探究.mp45.28MB4. 对人体吸入的空气和呼出的气体的探究.mp48.57MB5. 简单仪器.mp47.41MB6. 药品的取用.mp418.98MB7. 天平的使用.mp46.5MB8. 量筒的使用.mp46.13MB9. 酒精灯的使用.mp414.09MB10. 连接仪器装置.mp47.99MB11. 玻璃仪器洗干净的标准.mp43.22MB1. 空气中氧气含量的测定实验.mp411.16MB2. 空气成分.mp44.86MB3. 纯净物混合物的分类.mp45.26MB4. 空气中氮气和稀有气体的用途.mp44.73MB5. 空气污染及防治.mp44.64MB1. 氧气的物理性质.mp43.12MB2. 木炭燃烧.mp43.88MB3. 硫燃烧.mp42.95MB4. 铁燃烧.mp46.7MB5. 氧气的化学性质和用途.mp43.27MB6. 氧化反应.mp42.16MB7. 化合反应与氧化反应.mp45.21MB8. 加热高锰酸钾制氧气.mp47.28MB9. 过氧化氢溶液制氧气.mp44.66MB10. 氧气的收集、验满与检验.mp44.01MB11. 气体制取装置的选择.mp44.77MB12. 催化剂.mp46.34MB13. 分解反应.mp42.37MB14. 氧气的工业制法.mp42.51MB1. 物质的构成及分子的特征.mp47.01MB2. 探究分子运动实验.mp47.6MB3. 分子.mp45.29MB4. 用分子的观点解释物质的组成.mp44.91MB5. 用分子的观点解释物质的变化.mp43.73MB6. 分子与原子的区别与联系.mp47.11MB8. 原子的构成.mp45.12MB9. 原子核外电子的排布.mp45.57MB10. 原子结构示意图.mp45.94MB11. 原子结构与原子化学性质的关系.mp46.5MB12. 离子的定义及分类.mp43.89MB13. 离子符号的写法与意义.mp45.95MB14. 相对原子质量.mp44MB15. 相对原子质量、质子数、中子数之间的关系.mp45.06MB16. 元素的定义.mp45.37MB17. 地壳中元素的含量.mp43.21MB18. 元素符号的写法及意义.mp45.66MB19. 元素周期表简介及元素周期表提供的信息.mp45.64MB1. 爱护水资源.mp45.44MB2. 自来水净化.mp43.16MB3. 过滤.mp45.19MB4. 硬水和软水.mp43.89MB5. 氢气的性质与检验.mp44.17MB6. 水的组成实验.mp43.56MB7. 纯净物的分类――单质、化合物、氧化物.mp44.75MB9. 化学式的意义.mp44.56MB10. 化学式的读写.mp44.19MB11. 化合价.mp45.05MB12. 化合价的应用.mp45.69MB13. 原子团.mp410.13MB14. 化学符号及周边数字的意义.mp43.89MB15. 有关相对分子质量的计算.mp43.42MB1. 化学反应前后物质的质量关系的实验探究.mp414.67MB2. 质量守恒定律.mp49.17MB3. 实验探究质量守恒定律时应注意的问题.mp47.18MB4. 质量守恒定律的微观解释.mp48.98MB5. 质量守恒定律的相关计算.mp49MB6. 化学方程式.mp49.8MB7. 化学方程式的书写原则与步骤.mp410.66MB8. 化学方程式的配平方法.mp413.21MB9. 化学方程式的简单计算.mp45.85MB1. 碳的几种单质.mp48.95MB2. 常温下化学性质稳定.mp43.37MB3. 碳与氧气的反应——可燃性.mp48.9MB4. 碳与某些氧化物的反应——还原性.mp45.95MB5. 二氧化碳的实验室制法.mp48.18MB6. 二氧化碳的实验室制法原料的选择.mp46.54MB7. 二氧化碳的物理性质.mp47.96MB8. 二氧化碳的化学性质--与水的反应.mp46.19MB9. 二氧化碳的化学性质--与澄清石灰水的反应.mp45.59MB10. 二氧化碳的用途及危害.mp49.14MB11. 一氧化碳的物理性质和毒性.mp47.72MB12. 一氧化碳的化学性质--可燃性.mp44.26MB13. 一氧化碳的化学性质--还原性.mp45.19MB14. 碳及其化合物的相互转化关系.mp44.58MB1. 燃烧和燃烧的条件.mp49.78MB2. 探究燃烧的条件.mp48.84MB3. 灭火的原理和方法.mp410.08MB4. 灭火器.mp49.7MB5. 易燃物和易爆物的安全知识.mp410.66MB6. 化学反应中的能量变化.mp46.78MB7. 煤和石油.mp47.1MB8. 天然气.mp46.84MB9. 合理利用与开发化石能源.mp46.91MB10. 使用燃料对环境的影响.mp47.61MB11. 能源的利用与开发.mp46.81MB1. 几种重要的金属.mp413.55MB2. 合金.mp411.93MB3. 金属与氧气的反应.mp49.28MB4. 探究金属与盐酸、稀硫酸的反应.mp411.86MB5. 金属与盐酸、稀硫酸的反应.mp48.28MB6. 金属与酸反应-图象问题（一）.mp48.57MB7. 金属与酸反应-图象问题（二）.mp46.45MB8. 金属与酸反应-天平问题.mp48.17MB9. 金属与酸反应-混合物计算.mp45.86MB10. 置换反应.mp45.33MB11. 探究金属活动性顺序.mp47.7MB12. 金属活动性顺序及其应用.mp48.78MB13. 选择试剂验证金属的活动性顺序.mp48.21MB14. 金属质量变化的判断.mp46.52MB15. 滤液与滤渣.mp49.95MB16. 金属流程.mp47.45MB1. 金属在自然界中的存在.mp46.89MB2. 工业炼铁.mp46.82MB3. 一氧化碳还原氧化铁实验.mp48.17MB4. 铁生锈条件的探究.mp48.46MB5. 金属资源保护.mp48.91MB1. 溶液的形成、概念及特征.mp411.85MB2. 溶液的组成、命名及用途.mp48.59MB3. 溶解时的吸热或放热现象.mp49.17MB4. 乳化现象.mp411.52MB5. 饱和溶液和不饱和溶液.mp410.77MB6. 饱和溶液、不饱和溶液与浓溶液、稀溶液之间的关系.mp48.18MB7. 结晶.mp46.02MB8. 固体溶解度.mp415.72MB9. 固体溶解度的表示方法.mp49.7MB10. 固体溶解度曲线的应用.mp49.29MB11. 气体溶解度.mp47.35MB13. 溶质的质量分数.mp46.5MB14. 溶质质量分数和溶解度的区别和联系.mp410.15MB15. 溶液计算―直接计算.mp48.32MB16. 溶液计算―稀释、浓缩问题.mp45.07MB17. 溶液计算―与化学方程式的相关计算.mp47.85MB18. 溶液的配制.mp48.41MB1. 酸、碱与指示剂作用.mp47.25MB2. 几种常见的酸.mp45.19MB3. 浓硫酸的腐蚀性.mp410.13MB4. 浓硫酸的稀释.mp43.51MB5. 酸的化学性质.mp45.44MB6. 酸与金属氧化物的应用.mp44.71MB7. 几种常见的碱--氢氧化钠.mp46.46MB8. 几种常见的碱--氢氧化钙.mp44.83MB9. 碱的化学性质.mp43.54MB10. 酸、碱分别具有相似化学性质的原因.mp44.55MB12. 中和反应.mp411.29MB13. 中和反应在实际中的应用.mp46.21MB14. 溶液酸碱度的表示法-pH.mp48.84MB15. 中和反应的验证.mp412.19MB16. 溶液pH变化问题.mp48.45MB1. 氯化钠.mp49.3MB2. 粗盐提纯.mp48.62MB3. 碳酸钙.mp44.6MB4. 碳酸钠.mp47.13MB5. 碳酸氢钠.mp44.96MB6. 碳酸根离子的检验.mp45.24MB7. 复分解反应.mp47.24MB9. 常见化肥的种类和作用.mp46.88MB10. 化肥的简易鉴别.mp45.8MB11. 氮肥的简单鉴别.mp44.48MB1. 蛋白质.mp44.62MB2. 糖类.mp46.82MB3. 油脂和维生素.mp46.28MB4. 化学元素与人体健康.mp45.59MB5. 有机化合物.mp45.88MB6. 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什么是化学.mp48.94MB2. 化学发展史.mp410.09MB1. 化学变化和物理变化.mp47.23MB2. 化学性质和物理性质.mp410.64MB3. 对蜡烛及其燃烧的探究.mp45.28MB4. 对人体吸入的空气和呼出的气体的探究.mp48.57MB5. 简单仪器.mp47.41MB6. 药品的取用.mp418.98MB7. 天平的使用.mp46.5MB8. 量筒的使用.mp46.13MB9. 酒精灯的使用.mp414.09MB10. 连接仪器装置.mp47.99MB11. 玻璃仪器洗干净的标准.mp43.22MB1. 空气中氧气含量的测定实验.mp411.16MB2. 空气成分.mp44.86MB3. 纯净物混合物的分类.mp45.26MB4. 空气中氮气和稀有气体的用途.mp44.73MB5. 空气污染及防治.mp44.64MB1. 氧气的物理性质.mp43.12MB2. 木炭燃烧.mp43.88MB3. 硫燃烧.mp42.95MB4. 铁燃烧.mp46.7MB5. 氧气的化学性质和用途.mp43.27MB6. 氧化反应.mp42.16MB7. 化合反应与氧化反应.mp45.21MB8. 加热高锰酸钾制氧气.mp47.28MB9. 过氧化氢溶液制氧气.mp44.66MB10. 氧气的收集、验满与检验.mp44.01MB11. 气体制取装置的选择.mp44.77MB12. 催化剂.mp46.34MB13. 分解反应.mp42.37MB14. 氧气的工业制法.mp42.51MB1. 物质的构成及分子的特征.mp47.01MB2. 探究分子运动实验.mp47.6MB3. 分子.mp45.29MB4. 用分子的观点解释物质的组成.mp44.91MB5. 用分子的观点解释物质的变化.mp43.73MB6. 分子与原子的区别与联系.mp47.11MB8. 原子的构成.mp45.12MB9. 原子核外电子的排布.mp45.57MB10. 原子结构示意图.mp45.94MB11. 原子结构与原子化学性质的关系.mp46.5MB12. 离子的定义及分类.mp43.89MB13. 离子符号的写法与意义.mp45.95MB14. 相对原子质量.mp44MB15. 相对原子质量、质子数、中子数之间的关系.mp45.06MB16. 元素的定义.mp45.37MB17. 地壳中元素的含量.mp43.21MB18. 元素符号的写法及意义.mp45.66MB19. 元素周期表简介及元素周期表提供的信息.mp45.64MB1. 爱护水资源.mp45.44MB2. 自来水净化(1).mp43.16MB2. 自来水净化.mp43.16MB3. 过滤(1).mp45.19MB3. 过滤(2).mp45.19MB3. 过滤.mp45.19MB4. 硬水和软水(1).mp43.89MB4. 硬水和软水(2).mp43.89MB4. 硬水和软水.mp43.89MB5. 氢气的性质与检验(1).mp44.17MB5. 氢气的性质与检验.mp44.17MB6. 水的组成实验(1).mp43.56MB6. 水的组成实验(2).mp43.56MB6. 水的组成实验.mp43.56MB7. 纯净物的分类――单质、化合物、氧化物(1).mp44.75MB7. 纯净物的分类――单质、化合物、氧化物.mp44.75MB9. 化学式的意义.mp44.56MB10. 化学式的读写.mp44.19MB11. 化合价.mp45.05MB12. 化合价的应用.mp45.69MB13. 原子团.mp410.13MB14. 化学符号及周边数字的意义.mp43.89MB15. 有关相对分子质量的计算.mp43.42MB1. 化学反应前后物质的质量关系的实验探究.mp414.67MB2. 质量守恒定律.mp49.17MB3. 实验探究质量守恒定律时应注意的问题.mp47.18MB4. 质量守恒定律的微观解释.mp48.98MB5. 质量守恒定律的相关计算.mp49MB6. 化学方程式.mp49.8MB7. 化学方程式的书写原则与步骤.mp410.66MB8. 化学方程式的配平方法.mp413.21MB9. 化学方程式的简单计算.mp45.85MB1. 碳的几种单质.mp48.95MB2. 常温下化学性质稳定.mp43.37MB3. 碳与氧气的反应——可燃性.mp48.9MB4. 碳与某些氧化物的反应——还原性.mp45.95MB5. 二氧化碳的实验室制法.mp48.18MB6. 二氧化碳的实验室制法原料的选择.mp46.54MB7. 二氧化碳的物理性质.mp47.96MB8. 二氧化碳的化学性质--与水的反应.mp46.19MB9. 二氧化碳的化学性质--与澄清石灰水的反应.mp45.59MB10. 二氧化碳的用途及危害.mp49.14MB11. 一氧化碳的物理性质和毒性.mp47.72MB12. 一氧化碳的化学性质--可燃性.mp44.26MB13. 一氧化碳的化学性质--还原性.mp45.19MB14. 碳及其化合物的相互转化关系.mp44.58MB1. 燃烧和燃烧的条件.mp49.78MB2. 探究燃烧的条件.mp48.84MB3. 灭火的原理和方法.mp410.08MB4. 灭火器.mp49.7MB5. 易燃物和易爆物的安全知识.mp410.66MB6. 化学反应中的能量变化.mp46.78MB7. 煤和石油.mp47.1MB8. 天然气.mp46.84MB9. 合理利用与开发化石能源.mp46.91MB10. 使用燃料对环境的影响.mp47.61MB11. 能源的利用与开发.mp46.81MB1. 几种重要的金属.mp413.55MB2. 合金.mp411.93MB3. 金属与氧气的反应.mp49.28MB4. 探究金属与盐酸、稀硫酸的反应.mp411.86MB5. 金属与盐酸、稀硫酸的反应.mp48.28MB6. 金属与酸反应-图象问题（一）.mp48.57MB7. 金属与酸反应-图象问题（二）.mp46.45MB8. 金属与酸反应-天平问题.mp48.17MB9. 金属与酸反应-混合物计算.mp45.86MB10. 置换反应.mp45.33MB11. 探究金属活动性顺序.mp47.7MB12. 金属活动性顺序及其应用.mp48.78MB13. 选择试剂验证金属的活动性顺序.mp48.21MB14. 金属质量变化的判断.mp46.52MB15. 滤液与滤渣.mp49.95MB16. 金属流程.mp47.45MB1. 金属在自然界中的存在.mp46.89MB2. 工业炼铁.mp46.82MB3. 一氧化碳还原氧化铁实验.mp48.17MB4. 铁生锈条件的探究.mp48.46MB5. 金属资源保护.mp48.91MB1. 溶液的形成、概念及特征.mp411.85MB2. 溶液的组成、命名及用途.mp48.59MB3. 溶解时的吸热或放热现象.mp49.17MB4. 乳化现象.mp411.52MB5. 饱和溶液和不饱和溶液.mp410.77MB6. 饱和溶液、不饱和溶液与浓溶液、稀溶液之间的关系.mp48.18MB7. 结晶.mp46.02MB8. 固体溶解度.mp415.72MB9. 固体溶解度的表示方法.mp49.7MB10. 固体溶解度曲线的应用.mp49.29MB11. 气体溶解度.mp47.35MB13. 溶质的质量分数.mp46.5MB14. 溶质质量分数和溶解度的区别和联系.mp410.15MB15. 溶液计算―直接计算.mp48.32MB16. 溶液计算―稀释、浓缩问题.mp45.07MB17. 溶液计算―与化学方程式的相关计算.mp47.85MB18. 溶液的配制.mp48.41MB1. 酸、碱与指示剂作用.mp47.25MB2. 几种常见的酸.mp45.19MB3. 浓硫酸的腐蚀性.mp410.13MB4. 浓硫酸的稀释.mp43.51MB5. 酸的化学性质.mp45.44MB6. 酸与金属氧化物的应用.mp44.71MB7. 几种常见的碱--氢氧化钠.mp46.46MB8. 几种常见的碱--氢氧化钙.mp44.83MB9. 碱的化学性质.mp43.54MB10. 酸、碱分别具有相似化学性质的原因.mp44.55MB12. 中和反应.mp411.29MB13. 中和反应在实际中的应用.mp46.21MB14. 溶液酸碱度的表示法-pH.mp48.84MB15. 中和反应的验证.mp412.19MB16. 溶液pH变化问题.mp48.45MB1. 氯化钠.mp49.3MB2. 粗盐提纯.mp48.62MB3. 碳酸钙.mp44.6MB4. 碳酸钠.mp47.13MB5. 碳酸氢钠.mp44.96MB6. 碳酸根离子的检验.mp45.24MB7. 复分解反应.mp47.24MB9. 常见化肥的种类和作用.mp46.88MB10. 化肥的简易鉴别.mp45.8MB11. 氮肥的简单鉴别.mp44.48MB1. 蛋白质.mp44.62MB2. 糖类.mp46.82MB3. 油脂和维生素.mp46.28MB4. 化学元素与人体健康.mp45.59MB5. 有机化合物.mp45.88MB6. 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初中化学答案.pdf62.25MB初中化学习题.pdf21.22MB1藻类植物.mp425.1MB2苔藓植物.mp427.53MB3蕨类植物.mp462.67MB4种子的结构.mp421.43MB5种子植物.mp426.04MB6被子植物的分布和作用.mp431.16MB7种子萌发的环境条件.mp428.91MB8种子萌发的自身条件.mp413.55MB9种子萌发的过程.mp414.76MB10幼根的生长.mp420.2MB11芽的发育.mp424.23MB12植株的生长需要哪些营养物质.mp441.81MB13花的结构.mp417.49MB14传粉.mp435.53MB15植物的受精.mp49.57MB16植物对水分的吸收和运输.mp415.15MB17叶片的结构.mp428.81MB18植物的蒸腾作用.mp431.94MB19绿色植物与水循环.mp424.55MB20绿叶如何制造有机物.mp416.29MB21有机物的作用.mp430.98MB22光合作用的原料.mp413.87MB23光合作用.mp410.22MB24光合作用与农业生产.mp423.91MB25植物的呼吸作用的过程.mp417.79MB26植物的呼吸作用.mp414.22MB27呼吸作用与农业生产.mp425.19MB28生物圈中的碳-氧平衡.mp426.86MB29我国主要的植被类型.mp454.47MB30我国植被面临的主要问题.mp464.68MB1现代类人猿和人类的共同祖先.mp453.17MB2从猿到人的进化.mp422.53MB3人的生殖系统.mp49.56MB4人的受精.mp424.46MB5怀孕的过程.mp417.64MB6青春期.mp412.2MB7糖类、脂肪,蛋白质的作用.mp422.08MB8水和无机盐的作用.mp419.13MB9维生素的作用.mp424.49MB10膳食纤维.mp412.44MB11人体的消化系统.mp416.01MB12食物的消化.mp416.92MB13食物的吸收.mp421.01MB14合理营养.mp420.74MB15食品安全.mp416.01MB16鼻咽喉.mp418.53MB17气管和支气管.mp423.45MB18肺与外界的气体交换.mp416.1MB19肺泡与血液的气体交换.mp416.36MB20血液.mp430.06MB21血细胞.mp437.69MB22血管.mp420.72MB23心脏.mp418.76MB24血液循环.mp445.29MB25血型.mp416.67MB26输血和献血.mp413.48MB27泌尿系统的组成.mp419.42MB28尿的形成和排出.mp415.28MB29人体的排泄途径.mp422.1MB30眼和视觉.mp416.06MB31近视和远视.mp412.58MB32耳与听觉.mp423.04MB33人体对外界环境的感知.mp423.46MB34神经系统的组成.mp426.46MB35神经元.mp416.14MB36反射和反射弧.mp416.46MB37反射的分类.mp419.16MB38垂体和甲状腺的激素.mp418.58MB39胸腺、肾上腺和胰岛素的激素调节.mp430.17MB40分析人类活动对生态环境的影响.mp441.79MB41人口增长对环境的影响.mp420.19MB42环境污染对生物的不良影响.mp434.85MB43拟定保护生态环境的计划.mp433.59MB1生物的特征.mp456.5MB2生物的特征和观察法.mp440.97MB3调查周围环境中的生物.mp429.44MB4光对生物的影响.mp421.26MB5温度和水对生物的影响.mp429.82MB6生物因素对生物的影响.mp457.54MB7生物对环境的适应和影响.mp444.75MB8生态系统的组成.mp448.26MB9食物链和食物网.mp427.25MB10生态系统的特点.mp438.6MB11生物圈的范围.mp434.95MB12多种多样的生态系统.mp457.73MB13生物圈是一个统一的整体.mp456.74MB14显微镜的构造.mp413.74MB15玻片标本.mp416.31MB16植物细胞的基本结构.mp421.21MB17动物细胞的基本结构.mp422.77MB18细胞的生活需要物质和能量.mp430.99MB19细胞核.mp425.06MB20细胞的生长和分裂.mp424.41MB21细胞的分化和组织.mp424.88MB22人体的器官.mp429.99MB23人体的系统.mp414.79MB24植物的器官.mp423.41MB25植物的组织.mp428.05MB26单细胞生物的特点和种类.mp441.39MB27单细胞生物的结构和生活.mp445.2MB28单细胞生物及与人类的关系.mp429.69MB哺乳动物的种类及与人类的关系.mp437.29MB哺乳动物的主要特征.mp442.87MB扁形动物.mp412.11MB动物在生态系统中的作用.mp436MB动物在植物界、生物防治及仿生学中的作用.mp428.75MB骨、关节和肌肉的协调配合.mp438.8MB环节动物.mp419.2MB节肢动物里的昆虫类.mp436.08MB节肢动物里的其他种类.mp427.77MB两栖动物.mp448.14MB鸟的种类及与人类的关系.mp428.97MB鸟的主要特征.mp442.4MB爬行动物.mp462.43MB腔肠动物.mp446.24MB群体中的信息交流.mp434.5MB软体动物.mp464.72MB社会行为.mp447.48MB先天性行为.mp434.76MB线形动物.mp417.91MB学习行为.mp411.62MB运动系统的组成.mp415.75MB鱼的种类及与人类的关系.mp441.68MB鱼的主要特征.mp418.42MB安全用药.mp418.45MB不完全变态发育.mp429.48MB产卵、孵卵和育雏.mp439.93MB传染病的预防措施.mp414.98MB传染病及其特点.mp421.53MB传染病流行的基本环节.mp416.46MB出血与止血.mp416.57MB带你参观养鸡场.mp442.3MB地球上生命的起源.mp423.52MB分析生物进化的一个实例.mp421.72MB计划免疫和艾滋病.mp418.46MB急救.mp419MB嫁接与组织培养.mp424MB健康.mp413.24MB健康的生活方式.mp422.27MB基因的显性和隐性.mp48.15MB基因经精子或卵细胞的传递.mp414.06MB基因控制生物的性状.mp423.09MB基因、DNA和染色体.mp424.2MB禁止近亲结婚.mp419.43MB昆虫的生殖和发育.mp421.2MB两栖动物的生殖发育与环境条件.mp423.79MB两栖动物的生殖和发育.mp478.99MB孟德尔的豌豆杂交实验.mp414.03MB孟德尔对豌豆杂交实验的解释.mp47.41MB免疫的功能.mp427.76MB鸟卵的结构.mp424.33MB男女染色体的差别.mp46.59MB扦插与压条.mp416.72MB求偶、交配和筑巢.mp426.5MB人的性别决定.mp414.19MB人类应用遗传变异原理培育新品种.mp419.72MB人体的第一、二道防线.mp425.47MB人体的第三道防线.mp434.85MB生物的变异.mp424.69MB生物的性状.mp415.76MB生物进化的大致历程.mp430.8MB学习研究生物进化的方法.mp418.52MB自然选择.mp410.97MB自然选择学说.mp433.98MB植物的无性繁殖.mp422.73MB植物的有性繁殖.mp49.7MB病毒.mp425.45MB病毒与人类生活的关系.mp430.94MB保护生物多样性的主要措施.mp432.57MB从种到界.mp433.5MB动物的分类.mp419.42MB单细胞真菌--酵母菌.mp424.7MB多细胞真菌中的大型真菌.mp417.4MB多细胞真菌中的霉菌.mp413.37MB基因的多样性和生态系统的多样性.mp446.79MB生物多样性面临的威胁及其原因.mp452.96MB生物分类的演变及命名.mp413.26MB生物种类的多样性.mp422.82MB细菌的发现、形态和结构.mp418.23MB细菌的营养方式和生殖方式.mp423.51MB细菌和真菌的分布.mp412.69MB细菌和真菌与动植物共生.mp437.6MB细菌和真菌引起动植物和人患病.mp417.69MB细菌和真菌作为分解者参与物质循环.mp421.49MB细菌、真菌与人类生活的关系.mp425.96MB细菌、真菌与食品的保存.mp426.3MB细菌、真菌与食品的制作.mp422.17MB植物的分类.mp418.63MB
初中数学课程目录.xlsx20.35KB初中数学每日一练.pdf37.3MB答案1.pdf46.83MB答案2.pdf35MB答案3.pdf13.95MB
