5月13日，北京市第八十中学学生展示自己设计制作的仿生学设备。 新京报记者 王飞 摄
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（1）油价上涨对化工的整体影响：意外因素致油价短期大涨大跌，下游接受需过程。当前全球化工产业链库存处于底部，油价大涨下游被迫接受原材料涨价带来的产品涨价。若油价大涨后维持高位，下游适应后对化工行业的影响偏中性；若油价温和上涨或波动，对化工品盈利影响不明显，行业景气最终取决于供需关系。
Let’s illustrate the concept of modules by an example. Assume there’s a requirement for a rich-client application to perform an auto-update process. This requirement during the design process will become the application’s responsibility. If we assign it to an Auto-Updater Module, it will mean that fulfillment of this responsibility lies solely with this module. Not-modular approaches often lead to scattering responsibility among so-called “modules” like “model”, “database”, “infrastructure”, “domain”. But in the modular approach, if it’s decided that auto-update is not needed anymore, we should be able to get rid of this responsibility by deleting just one module (and its wiring to other modules), without the need for the shotgun surgery throughout layers.