Answer: 1 Adult higher education Adult higher education is an important part of higher education. Radio and TV universities, workers' universities, vocational and technical colleges, farmers' colleges, management cadre colleges, education colleges, independent correspondence colleges and adult (secondary) education colleges (hereinafter referred to as adult colleges) that hold adult higher education with the approval of the Ministry of Education implement national unified enrollment. Features: there are threshold restrictions, and you need to participate in unified registration, examination and admission. It has a long history and a large group of candidates. Undergraduate enrollment institutions have the right to award adult bachelor's degrees. 2 Higher Education Self-study Examination Higher Education Self-study Examination is a national examination of higher education for self-learners, which is a combination of individual self-study, social assistance and national examination. The self-taught examination system was established in 198 1 year. At present, the self-study examination has spread to 3/kloc-0 provinces, autonomous regions, municipalities directly under the central government, the military system and Hong Kong, Macao and Taiwan regions, and has become the largest open form of higher education in China. Citizens of People's Republic of China (PRC) (China), regardless of gender, age, nationality, race and education level, can take the self-study exam according to the provisions of the Provisional Regulations of the State Council on Self-study Exam for Higher Education. Features: Academic qualifications are highly recognized by the society and difficult to pass. The lowest threshold form of higher education. There is basically no limit to the number of years of graduation. 3 RTVU open education RTVU open education is a form of education relative to closed education. Its basic characteristics are: taking students and learning as the center, eliminating and breaking through the restrictions and obstacles to learners. For example, open education does not impose too many restrictions on students' age, occupation, region and academic qualifications. Anyone who has a learning ambition and a certain cultural foundation can apply for admission without taking the entrance examination. Students have certain autonomy in course selection and media use, and their learning methods, learning progress, time and place can also be decided by themselves according to their needs; Use a variety of media teaching materials and modern information technology in teaching and so on. Features: Students should have certain online learning conditions. Give priority to on-the-job, part-time and autonomous learning, and receive necessary face-to-face counseling and learning support services. Forgiveness is not "leniency", and you must obtain the required credits before graduation. 4 Network University Network University is a new educational model. There are 67 pilot online schools approved by the Ministry of Education of China. Different from traditional teaching methods, online universities mainly implement teaching through distance education. Students click on the online courseware (or CD-ROM courseware) to complete the course study, submit homework to the teacher by email or email, or communicate immediately, and some concentrate on face-to-face teaching. Features: Those who meet the requirements can be admitted without trial. Those who do not meet the exemption conditions need to take the entrance examination of the school. Discuss children's education.