点击切换搜索课件文库搜索结果(9672)
文档格式:PPT 文档大小:783KB 文档页数:14
病例1 患者,女性,28岁,已婚。因“反复月经不规则4年,咳 嗽伴痰中血丝1月于2001-1-29入院。97年因“停经4月 伴阴道流血”,于当地医院经B超检査,考虑为“过期流 ,行清宫术,未送病理检验。以后月经时常延迟10 20天,患者多次查尿HCG十,B超均未见宫内妊娠依 据
文档格式:PPT 文档大小:54KB 文档页数:17
药物代谢在药学领域中,已日益成为一个重要的组成部分。 通过对药物代谢的研究,人们能从定性、定量及动力学方 面了解药物在体内的活化、去活化、解毒及产生毒性的过 ,, 程。对于药物化学家来讲,通过对药物代谢原理和规律的 认识,能合理地设计新药,指导新药的研究和开发
文档格式:DOC 文档大小:398.5KB 文档页数:36
21世纪是信息社会,是数字化时代。信息作为一种重要的生 产资料已经被广泛地运用于各领域。在我国随着经济和信息技术的 发展,信息技术应用的范围不断拓宽,应用程度不断加深,金融、保 险、财政、税务、外贸、内贸、水利、电力、铁路、航空,信息技术 在众多部门起到了变革生产力的作用。而作为关系国计民生的社会 重要组成部分-医疗卫生事业却仍然采用传统的工作方式
文档格式:PPT 文档大小:4.3MB 文档页数:49
What is Metamorphism?1) Metamorphism is the change in form that happens in Earths crustal rocks in response to changes in temperature and pressure
文档格式:PPT 文档大小:5.12MB 文档页数:71
Introduction: Sediments In The Rock Cycle Sediments are transported by: Water. ce Wind. Gravity. The transport and deposition of sediments are initial phases of the rock cycle. The ultimate fate of most sediment is burial and conversion to sedimentary rock
文档格式:PPT 文档大小:2.42MB 文档页数:62
Introduction: Earth's' Internal-- Thermal Engine Magma is molten rock beneath Earth's surface. Because liquid magma is less dense than surrounding solid rock, and obviously more mobile, magma, once formed, rises toward the surface. Magma that reaches the surface does so by erupting through vents we call volcanoes
文档格式:PPT 文档大小:4.84MB 文档页数:56
Introduction: What Is Mineral? Mineral Naturally formed, inorganic, solid material with a specific chemical composition and a characteristic crystalline structure. Rock Naturally formed, coherent mass of one or more minerals, sometimes including organic debris
文档格式:PPT 文档大小:788KB 文档页数:34
Earth's Internal Structure When a meteorite impacts a planet or moon, its energy of motion (called kinetic energy)is transformed into heat energy. As Earth grew larger and larger from continual impacts, its temperature increased. Radioactive decay of materials like uranium, thorium and potassium also added heat
文档格式:PPT 文档大小:39KB 文档页数:3
Syllabus of Physical Geology Chapter 1 meet planet earth Chapter 2: Global Tectonics, Our Dynamic Planet oChapter 3: Atoms, Elements, Minerals, Rocks: EarthsBuilding materials Chapter 4: Igneous Rocks: Product of Earth's Internal fire Chapter 5: Magma And volcanoes Chapter 6: Weathering and soils Chapter 7: Sediments and Sedimentary rocks Chapter 8: Metamorphism and Metamorphic rock Chapter 9: How rock Bends, Buckles, and Breaks Chapter 10: Earthquakes and Earth's Interior Chapter 11: Geologic Time And The rock record Chapter 12: The Earth Through Time
文档格式:PDF 文档大小:406.99KB 文档页数:10
本文从部门这个新角度分析了中国地区经济的增长和差异问题。分析表明,工业和 其他第三产业对省区劳动生产率增长的贡献高达75%。同时,中国省区经济增长有显著的发散,但 是省区发散并不意味着每个部门都是发散的,农业、工业、交通运输仓储邮电业和其他第三产业等部 门是微弱发散的,而批零贸易餐饮业则显示出了微弱的收敛趋势。地区差距的87%来源于工业和 其他第三产业
首页上页858859860861862863864865下页末页
热门关键字
搜索一下,找到相关课件或文库资源 9672 个  
©2008-现在 cucdc.com 高等教育资讯网 版权所有