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D2 urine routine (microscopic examination of urine protein, urine sugar and urine sediment) o　　国安侦查人员在国际航空航天展会上，发现了世界上最为先进的鼠标窃听装置……恰巧，陈冬生的女儿陈月娇今天举行婚礼，陈冬生及其女婿航天所研究员杜二鸣均在展馆封闭区，无法及时赶到婚礼现If 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.在2×01《One Year In》中，Tom Kirkman担任美国总统已满一年，他致力于重建美国首都，抓住发动灾难性恐怖袭击的幕后黑手。可是当乌克兰民族独立主义者劫持一家俄罗斯空军飞机之后，这位新总统的外交能力在人质危机中将面临终极考验。Paulo Costanzo本季扮演白宫政治主任Lyor Boone，Ben Lawson扮演英国军情六处特工兼Hannah Wells的新爱情对象Damian Rennett，Zoe McLellan扮演白宫顾问兼律师Kendra Daynes，他们均为新的常规演员。