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Recently, I have made a preliminary investigation on DDOS attacks, and have some superficial understanding of the causes of DDOS attacks and their detection and defense mechanisms. This paper focuses on some thoughts on DDOS attacks in metropolitan area network environment under traditional network architecture.Computer computer = new Computer ();你放心吧。Production in Chinese: Cultural Zone《终结者外传》(Terminator: The Sarah Connor Chronicles)是美国FOX公司将在2008年播出的剧集，根据经典科幻影片《终结者》系列改编，内容讲述的是《终结者2》中发生的一系列事件之后，女主角Sarah Connor(Lena Headey扮演)和她的儿子John(Thomas Dekker扮演)的生活。At this time, many people think that gender affects the classification ability of babies, but Professors Heron and Slaughter do not think so. They think that the difference in classification ability of babies of different genders is not due to gender, but due to the different knowledge and experience they have acquired. For example, the fact that male babies can classify cars may be that they pay more attention to the color and wheel movement of toy cars and pay less attention to the information of dolls.