correspondence course is a form of higher education. students receive learning materials through letters or emails, and complete courses through homework, exams, etc. correspondence courses are different from full-time study. students do not need to go to school and can flexibly arrange their study time. correspondence courses and full-time courses are two different forms of higher education. the main differences are as follows: 1. correspondence courses are correspondence courses. students receive learning materials through letters or emails, and arrange their study time by themselves. full-time courses. students need to go to school to class, according to the prescribed time...