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发生在一九九七年岁末的古城西安，沣河派出所老张赴陕西办案，途遇车祸，因抢救旅客失血过多而晕倒，随身携带的六四手枪不翼而飞。西安市公安局八处（刑事侦查处）受命侦破该案件，在风雪严寒的艰难追踪中，线索扑朔迷离、头绪万千。机智的探警们精心侦破了一起又一起枪案，但均不是该案中丢失的枪。同时，这把枪在古城杀出租车司机、杀货运司机、杀家俱公司老板，连连致死人命。公安干警与一群心狠手毒、狡猾奸诈的凶犯斗智斗法，使得凶犯在随后试图抢劫金融机构、绑架勒索服装厂老板等犯罪活动即将得手的危急状态下，由于防范严密和布置得当而功败垂成。时至九八年三月，美国总统克林顿即将访华，第一站定在西安，四月份先遣队就将抵达古城。公安部下死命令，必须在三月底破获枪案。市公安局加大追捕力度，火车站军警大围捕，西安城半夜全城大清查，查线索至宁夏，追踪迹于上海，凶犯终于稳不住阵脚，企图杀掉当时卖枪人以灭口而后远走高飞。探警们废寝忘食，三天三夜，连连出击，倒毁西安老巢，捕主犯于北京，擒首犯董雷于武汉，赶在三月二十九号胜利破案。此时离公State mode is one of the implementations of state machines, but in a "classless" language like javascript, there is no stipulation that state objects must be created from classes. On the other hand, Java Script can use delegate technology very conveniently without having one object hold another in advance. The following state machine chooses to delegate the request directly to a literal object through the Function.prototype.call method　　[雷公桥]临安城北有一运河，只有一雷公渡口连接两岸，Flowers not only attract pollinators with color and smell, but also quietly guide insects who are too shy to know what to do because they land on flowers for the first time. There will be a white route on the petals of grassland geranium to guide insects into the center of flowers and find nectar. In this process, the wings of insects will be more or less glued with precious pollen of stamens. The flowers of alpine Pulsatilla and strawberry flowers have white petals on the outside and yellow stamens in the middle. This change in color depth will highlight the stamens and allow insects to fly to the middle of the flowers without hesitation.他心里咯噔一下，想起姑姑问的你究竟有几个好妹妹的话，禁不住脸又红了，讪笑道：姑姑，初雨不大出门的，我不放心……郑氏笑着点头道：应该的，应该的。这一天注定要围绕着《武侠世界》杂志、《白发魔女传》小说。Analysis, on the other hand, is to conduct a more detailed study of the contents of a class and find their subtle and accurate differences so as to have a deeper understanding of things. It is a comprehensive ability to see that some of them have more connections and more common points from the numerous and complicated large number of things, so that they can be summed up together to make the large number of things that were originally scattered form systems and categories.