Next, I would like to show my grate gratitude to my parents. Whenever I met the problems, they always comfort me and give me encouragement. With their endless emotional and financial support, I have persisted until the end of this project.
Furthermore, I would like to acknowledge all my friends who gave me a lot of suggestion on my topic selection, grammar check and software support in my research programme.
Without all of the help from everyone who had involved in my research process, I would not have been able to accomplish this project successfully, so thanks very much again.