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In terms of curriculum content, such APP products mostly inspect a single knowledge point in the form of games. The curriculum system is relatively weak and lacks explanation and guidance of knowledge points.Industrial Revolution 1.0-Age of Steam: It began in Britain in the 1860s, with the invention and application of steam engine as the main symbol. Human society entered "Age of Steam". Human society changed from agricultural handicraft industry to a mode of economic development driven by industry and mechanical manufacturing.And then she sends …Control Class回什么回。崇焕、光斗、进忠无奈地以现代人的身分重新展开人生，但他们终究是明朝古人，虽然他们一个武功精湛、一个智慧机灵、一个厨艺出众，但老套的价值观、对科技知识的一窍不通，令他们与现代人的生活格格不入，也因此闹出不少笑话!五十年代末的九龙城寨，是个黄、赌、毒肆虐的贫民窟，以三不管地带闻名于世。黑帮全面操控下，居民苟且偷安，各家自扫门前雪，目睹不公义也不敢伸出援手。其实，十五年前，这里本是平安地。两位八极拳宗师赤手空拳，力抗恶势力入侵。可惜，其中一位突然遇袭身亡，另一位则背上凶手之名自杀，城寨失去英雄，才令黑帮为祸十五年。左勾拳（陈展鹏饰）和段迎风（袁伟豪饰）正是两位八极拳宗师的后代。