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爱丽丝是一个害羞的青少年，为了赢得父亲的爱，她成为了黑手党组织最年轻的成员。摘菱角是好玩，摘久了就不好玩了In addition to the night scene, you can also adjust the shutter when shooting water flow.16.9 Chronic progressive diseases of oral cavity and temporomandibular joint that affect function are unqualified.该剧讲述了一场雪崩之后失忆的女小提琴手，在与若即若离的神秘企业家未婚夫即将迎来婚礼的时刻，从重重迷雾中寻找自我和救赎爱情的故事。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: