求翻译：美国中学的选修课主要有学术课程和职业课程两大类，学术课程为了拓宽学生的学术知识领域，为学生的升学打好基础。职业课程一般都与学生现实的生活和需要紧密地联系在一起，凡是学生感兴趣的方面几乎均有相应课程供其选择。是什么意思？

U.S. high school elective courses are mainly two categories of academic courses and vocational courses, academic courses in order to broaden students' academic knowledge in the field to lay the foundation for further studies of students. Vocational courses with the students the reality of life in ge

The United States secondary school academic courses are elective courses and vocational courses, academic courses in order to broaden students' academic knowledge to students in the school, and a good foundation. Vocational courses are generally students with real life and needs to be closely linked

The American Middle school's elective course mainly has the academic curriculum and the professional curriculum two big kinds, the academic curriculum in order to open up student's academic area of knowledge, enters a higher school for the student builds the foundation.The professional curriculum ge

United States Middle schools elective courses there are two kinds of courses and vocational courses, field of academic courses in order to broaden the students ' knowledge, laying a solid foundation for students to study. Vocational courses in General and the students ' real-life and need to be clos

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