Research About The Unstable "√'n'" In Mongolian

The author makes a deeper research of the unstability of Mongolian, referring to the meaning,evolutionon and the features,on the bases of Research results at home and abroad.The article consists of some parts,including Introduction,Chapter One, Chapter Two,Chapter Three and Conclusion.In Introduction,the imoortance of the chosen topic,Research Status, Research Methodsand and the cause of cited materials are briefly explained.In Chapter One,the author analyses the changeable Stemming, limited cell and linited shortformand,and stated the meaning of the unstable "(?)".In Chapter Two,the author states the evolutionon of the unstable "(?)"In Chapter Three,the author states the Speech features,Lexical features and Syntactic Features of the unstable "(?)".In Conclusion,the author sum up the contents in the paper.