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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:The performance appraisal has been conducted from May to June. It is now the end of July, According to the regulations issued by the company, performance appraisal bonuses will be paid every month. But now the performance appraisal reward has not been clear, The cashier kept asking us, But we can't give any reply, And about the performance appraisal bonus how to distribute cashiers listen to other departments rumors more, I feel that we will not issue it if other departments issue it. Although I have repeatedly stressed that the performance appraisal is a company-wide appraisal, there should be a unified standard for distribution, and no one will issue what we do not have, everyone is not satisfied with my unclear explanation.　　同时也将一个没有妖魔化、漫画化的蒋氏家族，栩栩如生地描绘给世人评说。尤其值得令人期待的是，该剧围绕国民党军统特务多次妄图刺杀毛泽东为情节线，从城南庄敌机偷袭到西柏坡投毒、从香山兵变到玉泉山刺杀、从先农坛暗杀到炮轰天安门……启功（马恩然 饰）是中国当代著名的教育家、古典文献学家、书画家、文物鉴定家、红学家、诗人，国学大师，是满族，是清朝皇族后裔……然而真正知道启功的人并不多。大多数人只知道他是书法家协会主席，他的书法在拍卖行卖得很火爆，很多学校、饭店的牌匾都出自启功之手。为此，登门求字的人络绎不绝。但启老自己对书法并不看重，只认为书法是副业，真正的主业是教书。　　另一方面，Sheldon（吉姆·帕森斯 Jim Parsons 饰）遭遇了重大打击——女朋友Amy向他提出分手。他多次试图挽回，然而Amy对此相当坚决。Howard（西蒙·赫尔伯格 Simon Helberg 饰） 和Raj（昆瑙·内亚 Kunal Nayyar 饰）等老友也为他们的事而伤神。大龄文艺宅男周书明和大龄剩女苏小亚在微博上被共同的好友利娜撮合，一句话的承诺使他们成功闪婚。婚后，两人工作的屡屡不顺给车房月供和生活带来巨大的压力，尤其苏小亚初恋何少勇的出现为两人的生活更平添了很多波折。刘邦这才坐回原地，但是心情却是无比的沉重，事实却是如此。