有一件事情值得玩味:为什么有特色的饭馆都会有一道号称招牌菜的主打菜品?为什么大多数音乐专辑都要有一首主打歌曲?为什么很多影楼的产品系列当中,都会有所谓“主推套系”?这里边是否存在什么必要性,另外,这么做,真的有那么好的效果吗?到北京旅行的人,几乎都要去全聚德吃烤鸭,全聚德的菜品很丰富,但在绝大多数客人心目中,烤鸭是他们对全聚德的唯一记忆。资深食客可能会举出芥末鸭掌,但这种 There is one thing worth pondering: why there are unique restaurants will be called a signature dish of the main dishes? Why most music albums have a title song? Why many studio products which will have the so-called "Is there any necessity here, and is there really such a good effect? ​​People who travel to Beijing almost always go to Quanjude to eat roast duck. Quanjude’s dishes are very rich, but in the vast majority of guests In my opinion, roast duck is their only memory of Quanjude. Senior diners may cite mustard duck’s palm, but this