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胯下的马动也没动，还甩了甩屁股，险些将杨长帆甩下去。为了生计，心蕾不得不开始工作，期间受到了很多的委屈。心蕾把新认识的富家子孔彦祥作为了依靠的对象。秦朗渐渐对心蕾产生了感情，而往日的未婚夫尚东也找到了心蕾。秦朗只好将自己的感情藏于心底……"Apart from Jiang Yong, is there anyone else injured or sacrificed as a result of this attack?" I asked.枯黄的旷野间，种了几亩胡萝卜和白萝卜，青绿的叶子连成片，给萧瑟的山野增添了些色彩。The Liskov Substitution Principle (LSP) is one of the basic principles of object-oriented design. The Richter substitution principle says that wherever a base class can appear, subclasses can certainly appear. LSP is the cornerstone of inheritance reuse. Only when derivative classes can replace base classes and the functions of software units are not affected can base classes be truly reused, and derivative classes can also add new behaviors to base classes. The Richter substitution principle is a supplement to the "open-close" principle. The key step to realize the "open-close" principle is abstraction. The inheritance relationship between the base class and the subclass is the concrete realization of abstraction, so the Richter substitution principle is the specification of the concrete steps to realize abstraction. --From Baidu7.2 Tuberculosis is unqualified.