This paper is the instructors of Cui-xia completed under the careful guidance from the thesis of choice, the idea of the programme, work and the implementation of the whole process of writing papers, are all permeated with a lot of effort instructors, tutors pioneering way of thinking, avid The work of the spirit, serious and pragmatic style of research, to benefit from the finalization of this thesis, only to the hard training mentor my highest respect and heartfelt thanks!
Foreign Language Institute graduate LU Lin Xue from the sister paper of choice to test the design and organization of the paper and writing, to the careful guidance and put forward many constructive comments and help, to express sincere thanks!
Foreign Language Institute in the papers of many teachers have to complete in a positive direction and to help in this profound gratitude.
Li thanked Tian, Zhang Weilong, Zhou Li Wei, Xie new, brothers-in the concern and help, and learn from them and the many useful discussion received enlightenment. Helped the author to thank all the teachers, students and friends! Thank the family of love, encouragement and support, they would like to extend my deep gratitude.