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Pat对自己的侄女Ran偷偷跟年轻的度假村老板Peet订婚一事十分生气，Ran也对阿姨阻碍自己的美好未来而伤心，她接受不了妈妈因贩毒而坐牢，而且从未去探望过妈妈，同时还对其他人隐瞒了自己的过去。 　　Peet要尽快和Ran结婚，因为他得知母亲患了癌症，并且认为Ran是最合适的人选。但是Pat对二人的爱情百般阻挠，并与Peet的朋友联合起来一起陷害Peet，Ran想极力隐瞒自己的过去和Peet结婚。随着时间的推移，生活的考验，Peet又结识了欢喜冤家Pat，Peet不仅守候爱情，而且还陪伴病重的母亲走完人生最后一段路程。"These attacks not only point to multiple targets, but also their specific tactics are changing in real time," said GarySockrider, solutions architect for Arbor Networks USA. Attackers will observe the response of the site and organize new attacks immediately after the site goes back online.这可以说是不幸中的万幸，尹旭不禁有些后怕，要是东瓯攻克雁荡山防线，直接北上，后果不堪设想。天蓬元帅成为猪八戒之前一段秘史，一个所有青少年都经历过的故事，一个合家欢的故事！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 Baidu