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Command mode belongs to the behavior mode of an object. Command mode encapsulates a request or operation into an object, and separates the responsibility of issuing the command from the responsibility of executing the command through abstraction of the command. The implementation of command mode can provide the functions of revocation and recovery of commands. The specific structure diagram is shown below.35. The company can regularly organize various social activities attended by all employees or supervisors or above. In particular, the sales and management department is at the grass-roots level and is busy all day. Without funds and time, there is no chance to communicate with employees. It is suggested that the company can use different forms (e.g. Fraternities, parties, suburban tours, etc.) to enhance the friendship and feelings between colleagues at appropriate opportunities. Create a harmonious working environment. To do a better job.三人各奔东西，却因为吉米的女儿遭杀害而重新有了联系。因为负责这个案件的，碰巧是西恩，此时他已是一名警探，面对好友女儿的被害，心急要找出真凶，却意外发现所有证据的矛头都指向了那个曾经亲密无间的伙伴——戴夫。关系变得剑拔弩张，而过去的友谊，如今的对立，都在拉扯着每个当事人的心。4 The minimum speed for 3 lanes in the same direction is: 110 kilometers per hour for the left lane; The middle lane is 90km; The right lane is 60 kilometers.玛莉亚，一个年轻的美术学生，决定和她的搭档朱利奥在她父母居住的小镇上共度周末，到达之后，她却发现了残酷的现实....First broadcast: October 17, 2009郑老太太跟张老太太都道：也不是啥好东西，就图个新鲜。