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-According to the "12th Five-Year Plan" for the Construction of National Urban Domestic Waste Harmless Treatment Facilities, it is estimated that by the end of 2015, more than 300 domestic waste incineration power plants will be put into operation and under construction in China.34岁的沈若歆是一个理智派，生活却给了她鸡飞狗跳的无奈。无论是身处以男性为主导的公司职场困境，还是单亲妈妈的强势催婚，以及家庭主妇加丁克两重身份闺蜜的婚姻困境..... 面对生活的多重博弈，她依旧目标明确、内心笃定地顽强开启成长进击之路。而祁晓的陪伴，也让她发现了亲密关系的另外一种可行性......这不仅是沈若歆的故事，也是属于每一个30+女性的故事。腾远学院新来的转学生颜晓希，养父曾是乒乓球高手，在养父的言传身教下，颜晓希打得一手好乒乓。颜晓希是个自立自强的女生，不仅打多份工贴补家用，还运用自身娴熟的球技参加球赛，挣取奖金交学费。腾远学院乒乓球社团社长齐景浩，是一个帅气的乒乓球高手，一次偶然他见识到颜晓希出众的球技，因此力邀颜晓希加入乒乓球社团，共同携手赢得全国学院杯冠军，颜晓希的加入让社团注入新的活力，乒乓社团日渐壮大，吸纳更多年轻的优秀球手。在一次次高手对决中，国球的竞技魅力深深感染了所有人。According to statistics, SYN attack is the most common and easily used attack method among all hacker attacks. I believe many people still remember the attack on YAHOO website in 2000. At that time, hackers used simple and effective SYN attacks. Some network worms cooperated with SYN attacks to cause greater damage. This paper introduces the basic principle, tools and detection methods of SYN attack, and comprehensively discusses the prevention technology of SYN attack.2.1