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(Ha Xuesheng, Director of Program Department of CCTV Financial Channel)Behind both analysis and synthesis is classification ability. Analysis is to find differences in one class, while synthesis is to find commonality in different things, which is equivalent to the dimension of classification. In fact, the core of pyramid principle and structured thinking is classification ability. This is also why many people have learned pyramid principles or structured thinking, but they still cannot analyze and solve problems because they have not accumulated a large amount of knowledge in a certain field (declarative and procedural knowledge, situational knowledge) and do not have conceptual ability in the field.Factory method modes are divided into the following three types:该剧讲述的是嘴硬心软、犀利多金的霸道女总裁夏梦薇对帅气嘴甜、生活技能满点的小柜员顾言一见钟情、再见扒衣，霸总勇敢追爱，对小娇夫围追堵截，最终将顾言这只披着羊皮的小泰迪拿下的故事。这是一个关于复仇和家庭的复杂故事,讲述的是自由职业杀手女妖被杀死父亲的雇佣兵伏击的故事。1. Report Self-report Materials