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In the system, the client often needs to interact with multiple subsystems, which causes the client to change with the change of subsystems. At this time, the appearance mode can be used to decouple the client from each subsystem. Appearance mode refers to providing a consistent facade for a group of interfaces in the subsystem. It provides a high-level interface that makes the subsystem easier to use. For example, the customer specialist of Telecom can let the customer specialist complete the services such as charging telephone charges and modifying packages without interacting with various subsystems by himself. The specific class structure diagram is as follows:你也必须拼命逃跑才像样。画浓妆的女生在后面发出哈哈大笑，好像听到一个非常好笑的笑话。影片讲述了小女孩菲菲的奔月故事。菲菲从小听着妈妈讲述的嫦娥与后羿的爱情故事长大，她坚信嫦娥是真爱永恒的化身。妈妈去世几年之后，爸爸准备再婚，菲菲深受打击。为了捍卫自己的家庭，为了向爸爸证明，嫦娥还在月球上永志不渝地等待后羿，她所代表的永恒真爱是真实存在的，菲菲自己动手制作了一艘“火箭飞船“，开启一段奇妙的奔月之旅。有4个不同极点的轨道是什么？他摸摸口袋，一咬牙，拿出一小块碎银子。《萌族酷狗侦探》是中国首部拟人化萌宠、人工智能时代多季剧，是集萌宠、机器人、AI、情感、悬疑等多种元素的都市科幻题材电视剧。该剧讲述了人工智能时代下，会说话的酷狗小八和它的动物加机器人朋友们帮助人类屡破奇案，以及萌宠、机器人和一群90后之间的情感故事。