l In this paper, we focus on the need for l This paper proceeds as follow. l The structure of the paper is as follows. l In this paper, we shall first briefly introduce fuzzy sets and related concepts
《学术英语写作与演讲 Academic Writing and Presentation in English》教学资源（阅读材料）Writing the Research Paper A Handbook（Anthony C. Winkler Jo Ray Metherell, 8th Edition）
