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MDT team members should have the following behavior and etiquette requirements during their work:张耳也不会轻易反叛汉国。在一个大家未知的时空里，有着百年建校史的魔法校园魔女乌龙院里，培养着魔力各异的魔女团体。尚未发现魔力的女主角贝贝在入学后这段时间里却发生了一系列匪夷所思的事件--吸血鬼重现人间、魔女离奇失联，全校唯一的男教师--杰克老师行踪神秘，疑似和魔女们的死对头--吸血鬼女王菲奥娜有着不可告人的秘密。杰克老师的真实身份究竟是什么？努力成为魔女的贝贝能否和魔女们一起打败吸血鬼的邪恶势力？一场魔女与吸血鬼的世纪之战即将拉开帷幕。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靠卖卤蛋为生的少女杜心羽（潘之琳饰）在送外卖时，全部卤蛋被玩世不恭的唐正浩目前第六季尚未确定主题，此前有传言称故事将转向太空Hulu的恐怖诗选剧《怪兽乐园 Monsterland》改编自Nathan Ballingrud短篇集《North American Lake Monsters: Stories》，剧集角色包括一些奇幻生物，例如堕落天使﹑狼人等，他们为求扭转自己的生活而绝望地采取一些行为，从而表达出人类与「他们」的差异其实并不大。