AcknowledgmentsI am greatly in debt to a number of people,without whose help this thesiscould not be completed.First of all,I wish to express my thanks andappreciation to my tutor,Mr.Meng Fanyi,whose helpful suggestions havecontributed greatly to the completion of this thesis.I owe him special thanksfor providing me solid and abundant materials and instructions.My sincere thanks should go to all the people helping me on this work,for their constant encouragement and support throughout the course of theresearch.Finally,I will express my thanks to my family who have shown patienceand understanding to the entire period of this work.The biggest thanks mustgo to my parents who,though unable to support me theoretically,encourageme spiritually.i
暂无评论内容