AcknowledgementsAswiththethesis,Ihavemanypeopletothank
Iamextremelygratefultomysupervisor,ProfessorLiXiangling
Sheguidesme,helpsmeintheprocessofpaperwriting
Fromthetopicselectionofthepapertothecollectionofdata,determinationofresearchprogramandpapercreation,thesupervisormadethevaluableobservationsineachlink
Thesuccessfulcompletionofthepapercannotbeseparatedfromthesupport,encouragementandcarefulguidanceofthetutor
Inthemeanwhile,IwanttothankmycolleaguesinGongdian,especiallymygoodfriend,TianXiaoyan
Withoutthem,myclassexperimentcannotbecarriedoutandcompletedsmoothly
Lastly,thanksgotomyparentsandhusband,whosecareandsupportmotivatemetomoveon,soIcandevotemyselftotheconceptionandwritingofthepaper
Iwillreturnallthepeoplewhohavehelpedmewithathankfulheartinthefutureworkandlife
AStudyontheApplicationof