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Virus have both an extracellular and an intracellular state. A virus is a submicroscopic particle containing nucleic acid surrounded by protein and occasionally containing other macromolecular components. In this extracellular state, the virus particle, also called the virion, is metabolically inert and does not carry out respiratory or biosynthetic

浙江大学：《数值分析》课程PPT教学课件（双语版）第七章曲线拟合与函数逼近 Approximation Theory §1 最小二乘拟合多项式 L-S approximating polynomials

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确定多项式P(x)=an+a1x++anxn,对于一组数 m 据(x,y(i1,m使得=P(x)-y2达到极小, i=1 这里n<

西南交通大学：《管理统计学》（双语版）第17章多元分析简介

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To detine multivariate analysis. To describe multiple regression analysis and multiple discriminant analysis. To learn about factor analysis and cluster analysis. gain an appreciation of perceptua mapping. To develop an understanding of conjoint analysis

《国际经济学辅助资料》（英文版） winnerslosers

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Bureau of Labor Statistics, non-farm employment peaked in March, 2001, at 132.5 million. In June, 2004, almost three years into an \economic recovery,\total non-farm employment was 131.1 million. It is also an undisputed fact that many American businesses are choosing to relocate production to places like

《国际经济学辅助资料》（英文版） ricardokrugman

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The title of this paper is a play on that of an admirable recent book by the philosopher Daniel Dennett, Darwin's Dangerous Idea: Evolution and the Meanings of Life(1995). Dennett's book is an examination of the reasons why so many intellectuals remain hostile to the idea of evolution through

清华大学：《化工原理》课程PPT教学课件（下）第二章吸收小结ABSsummary

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Summary: Absorption Knowledge Three main parts Part 1 how to achieve an absorption process? Part 2: how to determine the basic parameters of a packed column Part 3: how to enhance an absorption process

《Introduction of Haccp》（英文版） HACCP – An Introduction to the Hazard Analysis and

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HACCP-An Introduction to the Hazard Analysis and Critical Control Point System I. Introduction The acronym HACCP, which stands for Hazard Analysis and Critical Control Point, is one which evokes 'food safety'. Originally

外研版（三起）（2012）小学英语三年级下册Module 10 Unit 2 She's got an orange sweater.习题

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外研版（三起）（2012）小学英语三年级下册Module 10 Unit 2 She's got an orange sweater.习题

外研版（三起）（2012）小学英语三年级下册Module 10 Unit 2 She's got an orange sweater.习题(2)

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外研版（三起）（2012）小学英语三年级下册Module 10 Unit 2 She's got an orange sweater.习题(2)

复旦大学：《投资学讲义》（英文版） Chapter 9 Index and index fund

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Stock market index Stock market index is an indicator that is designed to reflect the performance of an entire market or a particular market segment. Indexes have many uses in investments: --allow us to quickly and easily assess market performance; --Serve as underlying securities for futures and options contracts;

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