维基先生Wiki
两种都可。elective/optional course： 选修课 Optional Elective Course： 任意选修课 例：This course is a specialized optional course for overseas undergraduates who major in Chinese.本课程是为汉语言专业本科的外国留学生开设的一门专业选修课。Is that optional course as hard as everybody says?那个选修课真的就像每个人说的那样难吗?In college, English is a required course and psychology is an elective course.在大学里，英语是必修课而心理学是选修课。This is a elective course based on the study of the thoughts of Marx on historiography.“马克思史学思想研究”是根据作者多年精心研究而设计的一门选修课程。
李大胆yao一起吧
专业必修课：Professional compulsory course 公共选修课：public Selective course专业基础课：Professional Basic Course、Major Basic Course公共基础课Public Basic Course专业选修课Professional Selective Course任意选修课Optional Elective Course专业主干课Major Principal Course、实践环节Practical Stage供参考
神级的男子
This article is an analysis of the student course selection system and its web application planning. This system is a typical MIS, its development includes two main portions: the development and maintenance of a back-end database, and the development of a front-end application. The requirement for the first portion is to establish a database with consistency, integrity, and security. The requirement for the latter portion is to develope an application that's complete in functionality and easy to use.. The request for the establishment of strong data consistency and integrity, good for the security of the data. For the latter request applications functions, such as easy to use features.
