AbstractThe analysis of air pollution sources shows that motor vehicles have becomethe main source of air pollution in key urban areas.Major countries and regionsin the world have ...

本科论文AbstractWith the rapid development of world economy and science and technology,computer hasbecome an indispensable part of people's life after the third technological revol...

铜陵学院毕业设计AbstractUltrasonic technology can quickly and accurately measure the thickness of metal andnon-metal materials and pollution-free,so it is very suitable for nondest...

A Study on the Problems and Strategy of Primary School MathematicsClassroom Evaluation-A Case Study of the Senior Grade in S Primary SchoolAbstract Classroom evaluation is an impor...

长江大学毕业设计（论文）题目：专业：姓名：指导教师：院系站点：长江大学继续教育学院年月日

问卷调查中设计的问题包括：医疗保健知识对大学生是否有好处（是/否）：对生殖保健的了解程度（十分了解/一般/不了解）：对结核等传染病预防的了解程度（十分了解/一般/不了解）；对性病预防的...

本科论文AbstractGas drainage is one of the fundamental ways to prevent and control gas disasters.Anefficient gas drainage system is a prerequisite for ensuring the drainage effect....

目录摘要一引言..3二工程索赔在国内外发展概况(一)国内工程索赔发展现状…3(二)国际工程索赔发展现状3二施工索赔的基本理论…4(一)施工索赔的定义及特征.4(1)施工索赔的定义.4(2)施工索赔的特征...

目录与言。。。。。。。。。。。.。。。一、天津滨海新区爆炸事件中的政府危机公关2(一)天津滨海新区爆炸事件引发的网络舆论危机.··…····…2(二)政府危机公关的过程.……21.首次信息发布...

AbstractAt the beginning of the 21st century,with the advent of the mobile Internet era,theconcept of the sharing economy gradually entered the public eye.From sharing short rents ...