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BOT is the abbreviation of Build-Operate-Transfer, which is usually literally translated as "Build-Operate-Transfer". BOT is essentially a way to invest, build and operate infrastructure. On the premise of reaching an agreement between the government and private institutions, the government issues a concession to private institutions to allow them to raise funds to build a certain infrastructure and manage and operate the facility and its corresponding products and services within a certain period of time. The Government may limit the quantity and price of public goods or services provided by the Agency, but ensure that private capital has the opportunity to make profits. The risks in the whole process are shared by the Government and private institutions. When the concession period ends, the private organization will transfer the facility to the government department as agreed, and the facility will be operated and managed by the government designated department. Therefore, the word BOT is paraphrased as "infrastructure concession.二十世纪五十年代末，中国大陆的领空频频遭到敌方侵扰，中央决定向苏联购买萨姆－2型地对空导弹，组建空军地空导弹部队，从此开始了对敌作战的崭新时代。一批来自四面八方的优秀官兵奉命调入这支代号为“543”的神秘部队，营长肖占武带领着一帮各具特色的优秀战士组建成为日后屡立战功的英雄二营。全营发扬“全营一杆枪”的战斗精神，顶住打靶失败的压力，一举击落RB-57D，首创世界防空史用地对空导弹击落高空侦察机的纪录。正在部队建设最困难的时刻，敌人恢复了对大陆纵深的侦察。面对专业技术难题、人员伤亡不整、导弹零配件短缺等不利因素，二营毅然承担起导弹伏击的重任，开始了艰苦卓绝的野外作战。最终，全营克服了重重困难，一举击落了多架敌U-2高空侦察机，创造了史无前例的辉煌战绩。我，我没有。漂亮的售楼小姐马可打车时把售楼合同书和十万元现金丢在了车里，出租司机李伟大拾金不昧，马可非常感动。在老妈刘海棠的鼓励和帮助下，李伟大披荆斩棘终于娶到马可。婚后婆媳俩相互较劲，李伟大靠自己的智慧在两个女人之间做着平衡。同时，李伟大的妹妹伟茹的故事也在上演。身为记者的伟茹因采访一起“集资诈骗案”结识了周磊，两人产生了感情，走到了一起。李家的日子越过越红火，婆媳相处日渐和睦，马可怀孕了，李伟茹举行了婚礼。刘海棠找了老伴，分手那一刻，马可由衷地喊了声：妈，您要常回来。婆媳俩难舍难离，紧紧地拥抱在一起。没关系。　　金爷十分看好峰，认为他是自己最合适的接班人，于是骗峰说自己是他的契爷，峰加入了黑社会。同时，Miss张恢复了一点记忆，回到了学校教书。一次峰在拉学生加入黑社会时，遇到了Miss张。峰对Miss张一见钟情，展开了猛烈追求。Miss张因记起自己已有一位恋人而拒绝了峰，峰陷入了低谷。这时，金爷发现峰加入后自己一直倒霉，于是准备除掉峰。关键时候，老夫子和大番薯赶到了！