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Answer: The similarity of these three modes is that they all serve as an intermediate layer between the client and the real used class or system, which plays the role of allowing the client to indirectly call the real class. The difference is that the application occasions and intentions are different.MR·LU是一个享誉全港的私家侦探，帅气、睿智、身手矫捷且善于应用高科技手段。他的破案率很高，来找他的客户也很多，只是他接受的案件，却往往与“灵异”有关……In a tcp connection, Rst means reset, which is used to close the connection in case of abnormality. When the sending end sends rst message to close the connection again, it does not need to wait for all the datagrams in the buffer to be sent out, but will directly discard the data in the buffer and send rst message. Similarly, after receiving the rst message, the receiving end will empty the buffer and close the connection, and does not need to send ack message for confirmation.面对混乱的局面，杨长帆只暗自叹道，还好只是小舰队，若是面对敌方主力，这样的经验和打法怎能决战？？葡萄牙人从地中海打到东南亚，而己方几乎一场像样的仗也没打过，不夸张的说，对方一艘战舰，可以顶己方三艘战舰。六王毕，四海一。然天下虽定，乱世未绝。天下第一剑客，始皇帝的近卫盖聂，携故人之子荆天明，为躲避秦始皇的追杀，踏上了荆棘密布的旅程。逃亡路上，天明结识了楚国少年少羽，信奉兼爱非攻的墨家众高手，还有身世成谜的少女高月等人。年少的天明对自己的身世和未来将要经历的一切一无所知，但一个关乎诸子百家，甚至是天下命运的画卷已经展开。