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Qingdao Women's Jump Once Walked Out of Leading Person　　《辛普森一家》（The Simpsons）是美国福克斯广播公司的一部动画情景喜剧，作为美国历史上最长寿的情景喜剧及动画节目，《辛普森一家》对流行文化产生了极大的影响，也赢取了大量的奖项，更是被《时代》周刊等权威刊物评为90年代最优秀的情景喜剧。The use of a low-temperature cooking machine for hot spring eggs is actually a bit small and useful, because hot spring eggs can be made with a pot of hot water, braising pot, thermos cup, etc. This time, the hot spring eggs are set to 65 degrees and cooked at 45MIN according to the parameters of the outer package, and the hot spring eggs are relatively perfect, and the Japanese fat beef rice is made, which is delicious to fly up when mixed with rice ~Batman has been captured by the hazardous Harley Quinn. Chained and dangling over a tank of ravenous piranhas, how on Earth can the Dark Knight escape certain death?!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 Baidu2. Achievement 1, "Draw firewood from the bottom of the kettle! 25 People Battle Tangmen"