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The real limiting factor for a single attacker who uses spoofing attacks is that if these spoofed packets can be traced back to their real addresses in some way, the attacker will be simply defeated. Although the backtracking process requires some time and cooperation between ISPs, it is not impossible. However, it will be more difficult to prevent distributed SYN flooding attacks launched by attackers using the advantage of the number of hosts in the network. As shown in FIG. 3, these host groups can use direct attacks or further let each host use spoofing attacks.铃木恭一（泷泽秀明 饰）是家中唯一的男丁，因此受到了母亲和姐姐的“过度保护”，对这一切忍无可忍的他终于借着念大学的机会从家中搬离，过起了自由独立的生活。可随着时间的流逝，恭一渐渐发现，自己其实并没有脱离母亲的“魔爪”。The certificates and signatures are handled by 2 companies respectively:杨菲雪换上郝英俊的心脏开着他的酒吧，周远光还是医生，李泽照顾着郝英俊的母亲，一切貌似都还是原来的模样。1974年，高树培在为所在帮派刺杀仇人之后远走日本。1990年，他自日本回港，与妻子雪莉及女儿仙迪重逢。雪莉原来在他离去后，得到警察范志洪的帮助，开设一家酒店，把女儿养大，而志洪在这时也自美国返港，替前上司白朗营救被绑架的儿子保罗，丈夫与情人同时出现，雪莉显得百感交集。数段复杂的江湖恩怨，便由此展开……如此重赏之下，自然出现了一些敢于冒险的人，经各地选拔筛取，这个来自安汶的小伙子成为了最终人选。Fabric has different weave structure and composition, and its combustion performance is different. The following is the classification of fabric combustion performance: