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Explain that in the OrderPizza method, we do a lot of things, including calling the CreatePizza method to generate a desired pizza, and then doing a series of operations on the pizza. The key point is that Pizza is defined as an abstract class, which means that in the OrderPizza method we don't care what type this Pizza is at runtime, in other words, this is decoupling. The coupling between PizzaStore and Pizza is uncoupled.约翰·达顿是达顿家族的一家之长，坐拥着美国最大的牧场，与牧场毗邻的有美国首个国家公园、印第安人保留地以及土地开发商买下的地皮。在一次因牲畜误入印第安人保留地引起的争端中，不幸的意外伤亡事件发生，一场涉及多方的争端在蒙大拿州这片美丽的土地上拉开了序幕。6. After landing, players can choose to find wild monsters, treasure chests, defeat enemy heroes and other ways to grow and develop according to their own strategies. Each way can get a certain drop reward. ;十一个人往南疾奔了一天一夜，在五月六日赶到了南雀国境内，然后折而往西北，一路寻找目标。望みの夢 菅野美穂 橋爪浩一法国美食的代表人物，“乐巴黎”餐厅的老板“主厨”，每年都要接纳一个犯了轻罪的青年进入他的团队来进行劳动改造。罗曼，刚刚走出监狱的假释犯，来到了这个充满了美食和香气的新世界。经过艰难的融合，他终于显露出了厨师的天分，一步步走向巅峰……