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(6) Having engaged in at least 10 fire safety assessment activities for industrial buildings and civil buildings with a single building area of more than 30,000 square meters in the three years prior to the date of application;峡谷中没有房屋，但有几处石窟。Liskov Substitution Principle, LSP (Richter Substitution Principle) means that subclasses must replace their parent types. In other words, in the process of software development, after the subclass replaces the parent class, the behavior of the program is the same. Only when the subclass replaces the parent class and the function of the software is not affected can the parent class be truly reused, and the subclass can also add new behaviors to the parent class. In order to look at an example of violation of LSP principles, the specific code is as follows:Kargil Girl is based on the life of Gunjan Saxena, an Indian Air Force Pilot. The film features Janhvi Kapoor, Pankaj Tripathi and Angad Bedi in the lead roles.美容院职员曾小雨（郑裕玲 饰）贪恋演员男友，但无奈后者只把她当做佣人对待，惨遭劈腿的曾小雨伤心落魄，去朋友的聚会上寻找新欢，由此机缘巧合结识了富豪之子利志（钟镇涛 饰）。利志父亲因与人斗法，被对手张山以生命为代价化为青面鬼下降头诅咒利家绝子绝孙，这导致利志不能与女性正常接触，而在结合时则会马上丧命。曾小雨昔日同学沈慈航（万梓良 饰）勘破小雨命中定数，赠送驱邪彩带护身。曾小雨与利志初次接触便遭遇车祸，但在朋友们的撮合下，曾、利二人还是展开了交往，沈慈航出面警告二人，情路艰辛，但曾小雨与利志决定继续交往……2. Color matching is easy to be dirty. It is recommended to use dark color.