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具有大方潇洒的魅力，老练而且精湛的侦破力，拥抱世界的温暖眼神，拥有炎热的心脏和冷静的头脑的强力班队长崔英真(金喜爱饰)，在搜查现场作为指挥官处理各种案件以及一系列打斗事件。因为范亚父指责虞姬为红颜祸水，致使父子两人之间关系下降，陷入冰点。板栗慌忙跟上。For interface programming, a lot of changes that may occur in the system in the future can be isolated. Why? If the code is written for an interface, he can implement the interface with any new class through polymorphism. However, when the code uses a large number of specific classes, once new specific classes are added, the code must be changed. Violating the opening and closing principle.Alert ('three ');135-155Demand determines the market. In recent years, due to the change of the educational concept of the new generation of parents after the 1980s and 1990s, they are strongly aware that examination-oriented education has certain defects, and the demand for the cultivation of children's comprehensive ability is increasingly apparent. On the other hand, the state has successively issued a series of policies to try to adjust examination-oriented education, and has begun to attach importance to and encourage the development of quality education for young children. All these have directly or indirectly created development space and entrepreneurial opportunities for quality education.