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In the above example, there is not much consideration for performance. In fact, there are some relatively large optimization points here.Official website: http://metrothegame.com/Similar to the development of children from appearance and color to older children, they can be classified according to concepts. For example, if they know the concept of "food", no matter what kind of vegetables they look like, they should be classified into one category. The classification of biology has also developed in this way. The earliest method is to identify and distinguish species according to phenotypic characteristics, and to classify them step by step according to the degree of phenotypic similarity, so as to establish a classification system that is easy to retrieve. This is the principle of phenotypic classification. However, the problem of phenotypic classification is that it is difficult to reveal the essential laws of things. Many creatures with very different shapes may have kinship relationships. For example, the online sentence "When I knew sunflowers belonged to Compositae, I collapsed" is what it means.从大山深处来到大城市打拼的曹永泰曹永浩兄弟俩走了两条截然不同的人生之路。哥哥永泰诚信做人、勤劳致富，赢得了众人的赞誉，弟弟永浩却通过读大学，结交名流，并翻手为云覆手为雨，利用与范教授女儿范岚岚、范倩倩姐妹俩的恋爱和婚姻关系，最终飞黄腾达，攀上了事业的顶峰。然而物极必反，范家姐妹因为永浩而反目成仇，最终酿成一起血案，让永浩深陷其中，并开始威胁到他的前程。永浩的好友张山是一位富有正义感的律师，他主动前来为范岚岚辩护，同时也是出于友情为曹永浩尽点义务。然而随着案情的深入，一个连他自己都不愿承认的事实浮出水面：原来血案的始作俑者竟是曹永浩本人！为此，张山陷入深深的迷茫中。面对张山的穷追猛究，永浩产生了事业即将崩盘的恐惧。他百般设计企图从案情中脱身。而深明大义的哥哥曹永泰却在最关键的时刻，以生命为赌注，逼迫永浩在法庭上公开承认自己的恶行。悬崖尽头，曹永浩终于迷途知返。他从事业的顶峰跌下，却获得了灵魂的救赎。而范岚岚、范倩倩姐妹俩也从情感的误区中突围，重归于好。What should we pay attention to before selecting teachers?亿万富豪Constantine Clios的新婚妻子Georgiana，过去曾研习美术。他们结婚刚满一年，Cilos便在法国南部的游艇爆炸案中丧生。那艘游艇属于一名俄罗斯政治寡头兼军火商人，因此Georgina坚信这起悲剧肯定不简单。在寻找真相的过程中，Georgiana发现丈夫的奢华生活可能完全建立在犯罪活动的基础上……欺骗，两面派，甚至谋杀。为了团结Clios家族，保住令人羡慕的豪宅，Georgiana不得不自甘堕落，在犯罪生活中沉沦。 　　在Constantine前任妻子的帮助和「教育」下，Georgiana学会了撒谎、口是心非、盗窃甚至更令人惊讶的犯罪行为。她必须尽快掌握犯罪的要领，否则这个家庭将被敌人彻底撕碎。她将自己染满鲜血的双手隐藏在漂亮的香奈儿手套中，她是这个黑色帝国中的「优等生」，她的生存能力远远超过别人。该剧的主题在于：Georgiana是一个好人，一个反英雄，但她最终被包围自己的腐败世界和危险现实吞噬。胡宗宪饮了口茶，似笑非笑：你不如直接说，若是我当了总督，不如周疏。