Mean Value Theorem and Its ApplicationsAbstract In this article,the course of the development of the differential mean theoremis presented,the specific content and the method of pr...

毕业论文〔设计)1.IntroductionJane Austen (1775--1818)was one of the greatest and best loved novelists inEnglish literature.Austen has written six novels in all her life,which were ...

毕业论文（设计）1.IntroductionCharlotte Bronte is one of the female writers in 19th century.Jane Eyre is herrepresentative work,but many foreign scholars praised Villette is more m...

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AbstractIn this paper,the antibacterial activities of ethyl acetate extracts from differentparts of Dictyophora indusiata such as fungus skirt,fungus stem,fungus cover and v-olva w...

Research on the optimization of the third party logisticsservice--taking a platform of JD logistics park LEGEstorage platform as an example[Abstract]In modern society,third-party l...

Research on Improvement of Production Logistics Systemof HeLv Lighting Co.,Ltd.Abstract In this paper,the research object is the production logistics system ofAluminum Lighting Co....

吉林大学硕士学位论文前言拮抗剂和PTKs的抑制剂，具有抗疟活性、抗菌活性及潜在的抗癌活性等。目前报道吡啶并苯并硫（氧）氮七元环化合物及苯并萘啶类化合物的合成方法不多，主要有付-克关环法...

AbstractInterest is the best teacher to learn.It is an important factor to cultivate andstimulate students'interest in learning in primary school mathematics teaching.Thispaper fir...

ContentsAbstract in English4Abstract in Chinese41.Introduction52.Politeness52.1 The Definition of Politeness..................................52.2 Politeness Principle (PP)and Its ...