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FIN\u548cACK\u7684\u4f5c\u7528<\/h2>\n

  FIN\uff1a\u7ec8\u6b62\u8fde\u63a5\u7684\u6807\u8bc6<\/h3>\n

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  ACK\uff1a\u786e\u8ba4\u63a5\u6536\u65b9\u5df2\u63a5\u6536\u5230\u6d88\u606f<\/h3>\n

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\u603b\u7ed3<\/h2>\n

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