摘要茶树炭疽病是影响茶叶产量和品质的重要原因之一，进而使茶产业发展受到抑制，茶树炭疽菌的生物学性状影响其对茶树的侵染能力、繁殖能力及抗逆性，研究生物学特性用于防治茶树炭疽病有重要意...

目录引言…41.问题的提出…1.1国外研究现状…41.2国内研究现状52.研究过程52.1研究对象…522研究方法一一问卷调查法…52.3研究步骤…62.3.1问卷的设计…2.3.2问卷的发放…62.3.3问卷的回收…62....

On the application of convexity of function in middle school mathematics problemsolvingAbstract In recent years,the investigation of this knowledge point about the convex function ...

On the application of derivative in real lifeAbstractThe derivative is the most important components in the field of higher mathematics,and itis the important foundation of mathema...

目录1前言…11背景和意义…12本文研究的主要内容………12幂级数的基本知识…………22.1幂级数的定义………22.2幂级数的收敛区间…22.3幂级数的性质…2.4函数的幂级数展开……624.1泰勒公式…2.4...

AbstractDifferential mean value theorem is a general term of a series of mean value theorems.Itis a powerful tool for studying functions and can help us to analyze and study the pr...

目录引言1最优化问题的定义和类型…。31.1数学优化种类的划分31.1.1连续优化的问题和离散优化的问题.31.1.2约束优化的问题和无约束优化的问题.31.1.3非线性优化的问题和线性优化的问题41.2优化...

《罪犯心理分析》课程标准一、课程基本信息课程名称：罪犯心理分析课程代码：01020331适用专业：刑事执行开设学期：1个学期课程学分：4个学分修课要求：必修课程总学时数：64学时其中：实践性教...

Research on the optimization of export trade structureinfoshan cityAbstractAs China's status as a major trading nation in the international market has becomeincreasingly consolidat...

Based on the Analysis of Influencing Factors of Zte's InternationaloperationAbstractWith the process of economic globalization,the world's economies are closely linked,so theintern...