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葫芦也发现两人直掉眼泪，也紧张地过来询问。她感觉被人抱得紧紧的，吓了一跳。Brief Introduction to Documents:　　黑龙江省边境小镇黑河，在时任警备司令的马占山治理下，百姓安居乐业，却不料日军悍然发动“九一八事变”。马占山临危受命，被任命为黑省代主席，总揽军政。1932年，“一二八事变”爆发，中日签订《上海停战协定》。上海爱国民族资本家云在天深感中日之间必将大战，于是暗中变卖家产，筹得一批黄金，想要送到抗日队伍中去；不料此举被日本人发现，云在天舍生取义，被日本人暗杀。云在天之子云飞岳为完成父亲的遗愿，在身为共产党员的弟弟云飞川的引导下，先后结识了地下党梅怡和、宋瑾、阿汉等人。在他们的感召之下，云飞岳加入了共产党，并在上海地下党的帮助下，成功地将黄金送到了抗日队伍手中 。In order to use SYN? Cookies to calculate the SYN-ACK serial number (that is, SYN? Cookies), the host must first combine some local password bits, a data structure including IP address and TCP port number, SYN initial sequence number, and some index data identifying the password bits. An MD5 digest is generated on top of all the above bytes, and then some bits are truncated from the hash value to put it into the SYN-ACK sequence number. Since the size of the sequence number is about a quarter of the total hash value, this truncation is necessary, but usually at least 3 bytes of hash bits are used for verification, which means that there are still nearly 2 24 possibilities to guess and verify cookies without knowing the password bits. In order to send out the hash value, some bits of cookies will reduce the upper limit value of MSS (Maximum Segment Length) contained in SYN and affect the index bits that identify the native password bits in the hash value.