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1996年，一场百年不遇的洪灾冲垮了绿岗村农民养家保命的几百亩山地，乡亲们看着满目疮痍的家园失声痛哭。河北农大教授李保国随科技扶贫组来到村里，乡亲们绝望的泪水刺痛了他，他决心扎根绿岗，指导果农改良苹果品种。在此之前，李保国曾在太行山深处的南川峪为小流域治理付出了十几年心血，直到把那里变成“太行山最绿的地方”。在绿岗，初来乍到的李保国穿着打扮和长相比农民还土气，并不被认可，他的科技主张也屡遭果农抵制，朴实的李教授最终用行动和成果打动和感化了乡亲们，绿岗苹果也成为享誉世界的品牌。科技改变了土生土长的农民们的命运，而李保国却在收获成果的季节倒在了他的岗位上。12. An XizhengIf I were to implement a pizza ordering system, I would definitely write the code like this, because this kind of code can be written subconsciously without consuming our brains. However, take a closer look at this code: the purpose of this method is to order pizza. However, the code for ordering pizza also needs knowledge about the production of pizza. This method must know all pizza. Worse still, if the types of pizza are to be expanded or pizza with poor sales volume are to be deleted in the future, then the code for ordering pizza will be modified. It looks very bad and should be revised. Our first step must be to separate the code for producing Pizza from the code for ordering pizza, because you should not let the code for ordering Pizza know the logic for producing pizza, but should hand over the logic for producing Pizza to a special type. In this way, we can cope with future changes-if we want to add or delete pizza, we can directly modify the producer of pizza without affecting the logic of ordering pizza.剧中出演男主角John的托马斯·德克尔(Thomas Dekker)想必大家并不是很熟悉，不过看过美剧《超能英雄》(Heroes)的朋友应该了解，他就是在第一季中饰演拉拉队长克莱尔的同学，拿DV给克莱尔拍摄视频的那个男孩Zach。君上，尹旭离开关中了，不过不是往新安，而是取道临江国。黄观让书儿退下后，心里也把小葱给惦记上了。2. On sailing boats with a length of less than 20m, the lights specified in paragraph 1 of this Article may be combined into one lamp, which shall be installed at or near the top of the mast where it is most visible.