第一部分，序言。说明本课题的研究意义、目的和思路。
First part, the prologue, introducing the research significance, purpose and idea.
最后提出了本课题研究的意义、目的和研究的主要内容。
At last the signification purpose and the main content of the dissertation are put forward.
最后是本课题的研究目的和意义。
Finally is the research goal and the significance of this topic.
最后是本课题的研究目的和意义。
Finally is the research goal and the significance of this topic.
应用推荐