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Article 2 These Provisions shall apply to engaging in social fire-fighting technical service activities within the territory of the People's Republic of China and implementing qualification licensing, supervision and administration of fire-fighting technical service institutions.State machines also have a wide range of uses in game development, especially the logic writing of game AI. The main characters in the game have various states such as walking, attacking, defending, falling and jumping. These states are both interrelated and constrained. For example, if attacked during walking, it will switch from walking state to falling state. In the state of falling, it can neither attack nor defend. Similarly, you cannot switch to the defensive state during the jump, but you can attack. This kind of scenario is very suitable to be described by state machine. The code is as follows:The following is a brief introduction to the use of yellow machines:他知道胡钧是有些门道的。女子特警队训练出的一批超级女警，小颜就是其实的一个。为了捉拿罪犯，她不惜潜入黑帮成为卧底，靠着拳头取得了黑道老大的信任……吴全清身为长婿，上有老丈人、丈母娘，要尽儿子的孝道；小有一个满脑子新思想的儿子，要做一个严父、慈父。他从一名跳水队的教练下海，经营着一家小作坊式的养狗场，但是养狗厂的倒闭，儿子女友的突然怀孕，甚至家里的感情危机，都让他的生活陷入混乱。老太太耍了个小心眼，也不说跟谁定亲，只笑眯眯地看着孙子的反应。