Schools offer a series of vocational-technical and university preparatory tracks involving one to three additional years of education beyond the minimum mandatory level.
学校提供一系列的职业技术和大学预备规划包括1 - 3年的超过最低强制水平的附加性教育。
However, I do not believe that there is a need to make class attendance mandatory at the university level.
然而我认为，到了大学阶段，就没有必要强制规定学生上课一定要出席。
Level 1 is mandatory for all implementations and provides read access to the repository, which in short means.
对于所有实现，级别1是必须的，它提供对仓库的读访问，简而言之。
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