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In the "Learning Massive Open Online Course" section, free video courses are divided into 5 categories, including social law, science, technology, agriculture and medicine, humanities and philosophy, politics and economy, and others, totaling nearly 200 courses. This includes 16 social law courses such as "Operations Research", "Tort Liability Theory" and "Communication Psychology". "Diagnostics of Traditional Chinese Medicine", "Antenna Principle", "Astronomical Exploration" and other 63 science, technology, agriculture and medicine courses, "Nine Lectures on the Essence of Marxist Philosophy Principles", "Guan Zhong's Management Thought of Chinese Famous Phase" and "Five Types of Poetic Life" and other 60 kinds of human history and philosophy courses, 15 kinds of political and economic courses such as "CPC Tax System", "Political Ethics" and "Corporate Finance" and 24 kinds of other courses that have not yet been classified, such as "Self-shaping: Five Elements of Success", "Gem Processing Technology" and "Cosmetic Appreciation and Application".好吧，本来以为跟着你可以吃香的喝辣的，没有想到我就是当牛做马的命。Chapter 1ALTER DATABASE SSDB SET EMERGENCY《大路方圆》是一部具有强烈震撼力的电视剧，许多故事来自交警的真实生活。随着剧情的发展，人们在川流不息的车流、人流中，处处可以感受到交通警察，为了维护人们的生命安全，舍生忘死地为营造人类生命的安全岛而奋斗着。剧中交警演员全部来自北京公安交通管理局。晚间的医院里，妇产科医师张静芳无法赶回家参加丈夫和孩子At that time, The helmets worn by our army are GK80 bulletproof helmets. After understanding, I am sure that Zhang Xiaobo is wearing this model. The material used to make it is 232 bulletproof steel, which has excellent performance and has good protective effect on various high-speed flying hard objects such as fragments and rubble lifted by explosion. However, because it is a pure metal helmet, it does have the disadvantage of being sultry when fighting in hot conditions.