非学历教育设置中文水平初级（A、B）、中级（C、D）、高级（E、F）三个等级、六个层次的系列课程。科学设计各等级入学测试标准，根据测试结果安排员工进入相应班级学习。

    Non-degree education programs offer a series of courses at three levels: elementary (A, B), intermediate (C, D), and advanced(E, F), spanning six levels of Chinese proficiency. Scientifically designed admission test standards are established for each level, and students are placed in corresponding classes based on the test results.