The observer mode defines a one-to-many dependency relationship, allowing multiple observer objects to monitor a certain topic object at the same time. When the state of this topic object changes, all observer objects will be notified so that they can automatically update their behaviors. The specific structure diagram is as follows:
After all the preparations were ready, we went to Nandashan Town, Yuanjiang City, Hunan Province, the destination of our college students' summer social practice activities in the countryside. Nandashan Town, Yuanjiang City, Hunan Province, is located on Dongting Lake 800 miles away. It is rich in aquatic resources and has its own characteristics. It is famous for its rich wild snakehead. There is a vast lake continent outside the embankment, with an annual output of 4000 tons of wild snakehead. There is a wild snakehead stocking area of 5000 mu in the embankment, with an annual output of 1000 tons and an annual output value of 1. The total number of farmers engaged in the snakehead industry in the whole town reached 3,000. Last year, the snakehead industry alone increased the income of 600 yuan. In recent years, the town party Committee and government have taken wild snakehead cultivation as a pillar industry for rural economic growth and have taken various measures to encourage farmers to raise snakehead. In 1998, Nandashan Town Ophiocephalus argus Breeding Cooperative was established to provide prenatal, intrapartum and postpartum services for the whole town's Ophiocephalus argus Breeding specialized households. Four service centers have been set up, namely, Ophiocephalus argus Breeding Feed Service Center, Ophiocephalus argus Breeding Technology Service Center, Information Service Center and Intensive Sales Service Center.
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咸丰年间，局势风雨飘摇，社会颓像渐显，帝国的最高统治者——咸丰春秋之年却无子嗣，许多双眼睛便盯上了未来的皇位，流言也不胫而走，传遍宫廷内外“皇上没有生育能力”，皇上有病，不能要孩子，这些流言的背后是各种政治势力的抗衡和较量。兰儿被咸丰无意撞见并得宠，她的胆略、见识更让咸丰刮目相看。咸丰欲立兰儿为贵人，遭到太佛爷康慈的极力反对。一番争斗，虽然取得贵人名分，但太佛爷所下懿旨中规定兰儿一年之内，如不能怀有皇上子嗣，便从此打入冷宫。兰儿无意间知道了皇上的难言之隐。为了巩固自己的地位，兰儿通过太监安德新安排自己儿时好友柳志同进宫为咸丰诊治，但柳志同行踪被咸丰身边的卧底密报康慈。康慈集团感到此事可以大做文章，于是精心设下圈套，企图一石二鸟，即证明咸丰确有花病，不能有后，又嫁祸兰儿私通宫外，欺君罔上，进而逼皇上立大阿哥为储君并除掉兰儿……公元1856年，兰儿生下一子，被册封为皇贵妃。太贵妃康慈一病不起，听到兰儿生子的消息，当即召儿子恭亲王进宫，说完“你不要从政，不要和兰儿斗，你斗不过她”之后病逝。天子
After this experience, we learned that mud dyeing uses cold dyeing techniques. Cold dyeing reduces the damage to fabric fibers. For example, this time we brought a large number of cashmere scarves to remove mud dyeing. Basically, there was no floating hair, thus protecting the texture of the fabric itself.
漂洋过海的移民，也许充满了太多的不测与困难。
Category: The attribute is used to specify the environment in which the current Action is executed;
夜幕低垂，麦克斯（杰米·福克斯 Jamie Foxx 饰）在机场接了一位注定要改变他人生的客人――文森特（汤姆·克鲁斯 Tom Cruise 饰）。
1946年八年抗战刚刚结束。内战在东北一触即发。
说完猛地爆发，将钢刀舞得密不透风，仿佛恢复了战场上的勇猛战力，将那三人逼得节节后退。
西根公辉是个平凡的高三生，某天和死党二阶堂路过H大学兽医系，碰到了头戴羽毛、脸画彩妆的怪教授。结果教授不但当场预言：“你以后一定会当兽医！”还硬塞一隻长相可怕的哈士奇幼犬给公辉照顾。从此公辉的家里，除了大姊头三毛猫、暴君大冠鸡，又多了一个新成员：哈士奇犬巧比！大兽医系，在那里遇见了各式各样的大小动物，以及个性千奇百怪的教授和同学。兽医系里有鼠类恐惧症的二阶堂、非洲迷的漆原教授、特异体质的菱沼学姊，还有英国绅士的菅原教授…就这样公辉、巧比与愉快的伙伴们，展开了熙攘喧闹的校园生活！
该剧讲述了特警“小虎队”从接受考核组队，到成长为可以在繁琐的案件中独当一面的“钢铁战队”的故事。
Selected from: Futurism
Right Aileron Right Arrow Right Arrow-
都什么年代了，即将跨入剩女行列的何彩虹还相信“灵魂伴侣”？她还真的就遇着了这么一位：季篁，大学老师，博学、浪漫、冷傲、深刻，与她在精神深处灵犀相通如天造地设。
《扑通扑通放送事故》讲述了在新冠肺炎时代突然火起来的直播带货公司里发生的一系列故事。
咱们这出身专业的老丈人很“偶然”地发现Focker先生包中的小药盒后，自然展开了丰富到极致的想象，正当Focker先生忙于应付之际，Focker太太英俊风趣的前男友又出现搅乱，本来平静的生活立马开锅......
