from .hainmc.edu.cn/jyyxy/info/1097/6497. (google trans) Elective courses: elective courses can be divided into restricted elective courses and non-restrictive elective courses. It mainly introduces advanced science and technology and the latest

2.选修课程：选修课程可分为限制性选修课程与非限制性选修课程。主要是介绍先进科学技术和最新科学成果；扩大学生专业性或非专业性知识面；满足学生的兴趣爱好，发展他们某一方面的才能。

But what are Restricted elective course? 限制性选修课程

more of Google option translate (3) Degree curriculum

The degree courses must comply with the relevant regulations of the national degree management, keep up with the frontiers of subject development, and lay the necessary foundations of knowledge, thinking and skills for students.

1. Compulsory courses: Compulsory courses are the courses that graduate students of specific majors must study to complete their master’s degree training. The compulsory courses are composed of public courses, degree foundation courses and professional courses;

(1) Public courses: Non-professional courses set up in accordance with relevant national regulations and the knowledge and ability structure that students should possess, including courses in philosophy, political education and language. Not less than 3 courses;

(2) Degree basic courses: professional basic courses set according to professional characteristics. No less than 3 courses for each major;

(3) Professional courses: professional courses for each major. Professional courses are in the category of second-level disciplines or third-level disciplines. Generally, there are 1 to 2 courses, at least one of which is in the category of second-level disciplines.

2. Elective courses: elective courses can be divided into restricted elective courses and non-restrictive elective courses. It mainly introduces advanced science and technology and the latest scientific achievements; expands students' professional or non-professional knowledge; satisfies students' hobbies and develops their talents in a certain aspect.

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Note added at 21 hrs (2023-06-29 03:00:43 GMT)
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links https://www.hainmc.edu.cn/jyyxy/info/1097/6497.htm

encore, voir a https://baike.baidu.com/item/限制性选修课/55171726

限制性选修课
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在规定的范围内选修的课程
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限制性选修课（restricted elective course），在规定的范围内选修的课程。 [1]
中文名限制性选修课 Google TAO Traduction Assitee Ordinateur restricted electives
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Restricted elective courses (restricted elective courses), elective courses within the specified scope. [1]
Chinese Name Restricted Elective Course

Wau bu jr dao, je ne sais

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Note added at 21 hrs (2023-06-29 03:12:41 GMT)
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another link 非限制性选修课程 Unrestricted Course , from English option on that site

http://www.cfl.cqu.edu.cn/ggwy/fxzxxxkc.htm

Ich wies es nich genau, there is mention in http://www.hsyj.pudong-edu.sh.cn/school_xw/view_notice.aspx?... that time and space are LIMITED, and students have a time period.... Google option Secondly, knowledge is unlimited, but courses are limited. It is impossible for the limited courses in schools to impart the unlimited knowledge needed by the society. Traditionally, school education uses formal courses as the educational content to promote children's physical and mental development. Such courses generally focus on subject knowledge and are strictly organized according to subject logic and the laws of children's physical and mental development. The content of school education must be screened and strictly organized, not all life content must be included in school education. Third, the developmental needs of children are unlimited, but the learning process is limited. It is impossible to meet the developmental needs of such a large number of children of different ages and needs within the limited time of school education . Original 教育目标是无限的，而学校实现教育目标的能力是有限的，学校教学和生活不可能完全达成理论上无限的目标。经常可以从报刊杂志上看到“应为……学生设……课程”的呼声，把一些连成年人也不懂甚至是专家正在研究的学科硬强加给学校。这就把学校教育应该达成的目标等同于学校能力。其次，知识是无限的，而课程是有限的，学校的有限课程不可能传授社会所需要的无限知识。传统上，学校教育以正式课程作为教育内容对儿童的身心发展起促进作用，这种课程一般以学科知识为主，依照学科逻辑和儿童身心发展规律严密地组织起来。

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Note added at 21 hrs (2023-06-29 03:14:50 GMT)
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Zhōngguó rén bāngzhù wǒmen jiějué zhège wèntí Chinese speaker needed to help us.