点击切换搜索课件文库搜索结果(2925)
文档格式:DOC 文档大小:56KB 文档页数:4
1、伴性遗传与常染色体遗传有何差异? 2、近交的遗传效应是什么? 3、如何提高某个性状的选择反应? 4、遗传性疾病的遗传规律有哪些? 5、数量性状的一般特征有哪些?
文档格式:PDF 文档大小:247.06KB 文档页数:6
All the ingredients included here are derived from milk or eggs. In their principal value is there are also tenderising properties associated with the fats and emulsifying compounds which they contain. Milk, butter, cheese and eggs have been traditional ingredients for baking due to their exceptional nutritional values as well as their flavour. The techmology of milk production has now developed to such an extent that there are a large
文档格式:PDF 文档大小:378.17KB 文档页数:8
The only difference between a fat and an edible oil is that at ambient temperature a fat is semi-solid, and appears more or less firm to the touch, and an oil is liquid. They are both of similar general chemical composition. Edible oils are completely different in chemical form to mineral oils that are used as fuels or for lubrication. Most mineral oils are hazardous to human health and should not be even a small
文档格式:PDF 文档大小:627.98KB 文档页数:14
4.1 Introduction White wheat flour is the largest ingredient in nearly all biscuits. It is made from wheat by removing the brown surface coating and the embryo(the bran and the germ) and reducing the particle size to a fine powder. Modern milling methods are very complex involving many stages principally because it is difficult to separate the bran from the white central part (known as the endosperm)of the wheat
文档格式:PDF 文档大小:185.45KB 文档页数:4
Biscuits are small baked products made principally from flour, sugar and fat. They typically have a moisture content of less than 4% and when packaged in moistureproof containers have a long shelf life, perhaps six months or more. The appeal to consumers is determine by the appearance and eating qualities. For example, consumers do not like broken biscuits nor ones that have been over or under baked
文档格式:PPT 文档大小:566KB 文档页数:21
公众关系已经成为科学与艺术相结合的,生产经营与管理决策为一体的专门职业。 一、公共关系人员分析 二、公共关系机构设置 三、公共关系咨询公司
文档格式:DOC 文档大小:38KB 文档页数:3
环境卫生学本身并不包含预防医学绪论的内容,为使预防医学专业的学生对所学专业 有一个系统、完整的认识,我们在实践中增加了“预防医学绪论”的内容,由环境卫生学 教硏室承担讲授任务。因为环境卫生学的学科范围可涵盖小环境和大环境。小环境即狭义 的环境卫生学,大环境则涉及生产环境、社会环境、生态环境及生活环境中的食物因素 等,与劳动卫生与职业病、社会医学、营养与食品卫生等学科密切相关;而环境流行病 学、环境毒理学等环境卫生学的分支学科与流行病学、卫生统计学、卫生毒理学等学科密 切相关
文档格式:PDF 文档大小:3.23MB 文档页数:59
我国是世界上重要产棉国家之一有悠久的植棉历 史和广阔植棉地区东起长江三角洲沿海棉区及辽河 流域,起迄新疆塔里木盆地西缘,南自海南,北至新 疆玛纳斯垦区均可植棉。各种棉花病害也随之遍及各 棉区。 棉花病害是制约棉花生产的重要因素。据联合国粮 农组织估计,由于病害造成的损失达24% 美国棉花病害协会19521990年的统计,因病害造 成棉花的损失年平均为13.28%
文档格式:PPT 文档大小:1.6MB 文档页数:119
主要内容:系统阐述相图的基本原理;结合实际介绍相图在无机非金属材料的研究和生产实践中的具体应用
文档格式:PPT 文档大小:52.5KB 文档页数:17
1、商业银行是在商品交换和市场经济的发展中,为适 应商业生产扩大和市场经济发展需要形成的一种金融 组织。商业银行产生的途径主要有两种:一是从旧式 的高利贷银行转变而来;另一种是以股份公司形式组 建而成。 第一节 商业银行概述 第二节 商业银行的资本 第三节 商业银行业务 第四节 商业银行管理 第五节 银行的发展趋势
首页上页286287288289290291292293下页末页
热门关键字
搜索一下,找到相关课件或文库资源 2925 个  
©2008-现在 cucdc.com 高等教育资讯网 版权所有