一、李的栽培历史: 李子栽培在我国已有3000年以上的历史。 《齐民要术》中记载李子品种31个,其中郁黄李、 牛心李、紫李、青李等近20个品种至今仍在各地沿 用。中国李原产中国,西汉时已传到日本、伊朗等 国,后又流传到意大利、德国、法国等欧美诸国。 19世纪中期,美国传教士把欧洲李引到中国

Prof. Ed Greitzer Prof. Earll Murman \The course faculty is responsible for the structuring of the subject and the development of the learning objectives, subject content and assessment tools. The course faculty will lead all class and team meetings and grade all written and oral material. The course faculty, together with input from the 16.62x staff and Writing Program Instructor, are responsible for assessing

DEFINITION OF A HYPOTHESIS Hypothesis A tentative explanation that accounts for facts and can be tested by further investigation; a theory Something taken to be true for the purpose of argument or investigation; an assumption .Experiment test under controlled conditions that is made to demonstrate

Topics Grading rubrics for written proposals Content Communication Grading distribution between content and communication Dealing with multiple graders Division of work within teams

BASIS FOR MEASUREMENT Whatever exists, exists in some amount Our goals: Measure the appropriate quantity, Measure with the appropriate accuracy, to allow us to assess our hypothesis Some questions:

Why search (and cite) the literature of your field? Credibility: To be sure that your work is based on current, sound researchthe-- best in your field. Focus: To be able to place your work in context. Efficiency: To be sure that you're not duplicating work

Experiment Step Experiment produces \raw data? In measured units(volts, seconds, Ibs, .... Organization determined by recording method (notebook, tabular form, database,....) · Take data early to check-out- experiment Do some \quick data reduction/analysis\ during

Quick review 1. Show the reader what s/he needs to see 2. Plan the sequence and directionality 3. Think about the focal point of the graphic 4. Integrate labels units of measurement. and information

实践模式 美国课程专家施瓦布(j.j.. Schwab)从1969年 发表《实践1:课程的语言》一文后,确立了课程 研究的“实践模式”。它主要针对传统的“理论的” 课程探究模式而提出的。基本思想: 指导学校教育改革的理论是“复数而非“单数”; 课程问题主要应解决“应该教什么”和“应该学 什么”的问题,因此,问题解决的方式应主要是实 践的推理,而非逻辑的推理;

一、案件背景 美国宪法是在联邦党与共和党(即现在民主党前身)的权力斗争背景下制定。联邦党主张建立一个权力高于 各州的联邦中央政府,共和党主张维护各州的独立主权。制宪会议在两派的激烈斗争中,制定了一个妥协的宪 法,宪法以列举式规定了联邦权限,其余权力归属各州。但是,联邦党与共和党的权力冲突并未因此而终结。 马伯里诉麦迪逊案(marbury. madison)发生于1803年,正处于联邦党与共和党激烈争权的年代