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解放初期，我国北方某地。退伍军人张国宝回到家乡杜家庄参加农业生产，父亲张老五因循守旧，由于原先没种过棉花，对于上级号召种良棉缺乏信心，国宝的未婚妻拉英也不知所措。地主杜天成、二流子刘老二趁机妖言惑众，从中作梗。而此时，果树突发的虫害更让缺少文化的乡亲们不知如何是好。国宝找到村长大牛、积极分子杨连升协商，找来良棉推广队，准备播种。愚昧的张老五见虫害日益严重，竞用迷信方法驱灾。国宝带头用科学方法治虫害，终于使大家从落后的生产方式中解放出来...一事无成、生活惨淡的女子深信她已失去所有热情，直到年轻且朝气蓬勃的自己有天出现在眼前，要她做出改变。影片是根据谢尔盖·卢科扬涅科(Sergei Lukyanenko)的三部曲(守夜人，守日人，黄昏使者)中的第二部《守日人》拍摄录制的。The real threat lies in amplification attacks using reflection principles, In the network service protocol provided by the reflector, There needs to be an asymmetric amount of request and response data, The amount of response data needs to be greater than the amount of request data, The larger the ratio of the response data to the request data, the larger the amplification factor of the amplifier, and the more obvious the effect of consuming bandwidth resources caused by amplification attacks. However, the number deployed on the Internet is very small, so amplification using the network service cannot achieve a large flow and can only be used as an auxiliary means.战事势必要陷入僵局，这样的话，对我军将会是巨大的消耗。