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In the case of a reflection attack, An attacker uses a controlled host to send a large number of packets, What makes these packets special is that, The destination IP address points to the server, router, and other facilities that act as reflectors, while the source IP address is forged as the target IP address, When the reflector receives the data packet, it will think whether the data packet is requested by the attack target, so it will send the corresponding data to the attack target. When a large number of response data packets flock to the attack target, it will deplete the network broadband resources of the target, resulting in denial of service attacks.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS: its corresponding attribute in AndroidManifest is android: excludeFromRecents= "true". When the user presses "Recent Task List", the Task will not appear in the Recent Task List, which can hide the application.李嘉玲乃潮州李家村之女，由于她天赋特异功能，国家高干特派她往香港执行伤务。当玲所参加的旅行团经过乱葬岗时，因触怒恶鬼而弄得车毁人亡，除玲幸免外，所有团友也被亡魂附体。在香港，接应玲的人乃道士马九英，由于二人素未谋面，故弄至笑话百出。这时候，团中亡魂李炳已成恶毒鬼王，在港招兵买马，英与玲乃正义之士，遂联手消灭群魔，二人正当手刃鬼王时，正值凶时已至，鬼王魔力大增，经过一轮火拼，英、玲终险胜而归。飞杨的裙裾，动感的节奏，歌舞升平的背后正酝酿着一场血腥的风暴：一公司的老总突然被杀……秦末汉初，群雄逐鹿。空怀经天纬地之才却埋没民间的淮阴少年韩信，因缘际会遇到一名神秘黑衣人，称可借助神力帮韩信崛起，条件是只要韩信答应与他做一场交易。历史的车轮不断转动，秦始皇、刘邦、项羽、张良纷纷走进权力纷争的核心，身处其中的韩信发现，这王朝更替与权利交织的背后，竟有一股神秘未知力量在操纵......