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As far as a class is concerned, there should be only one reason for it to change. If a class assumes too many responsibilities, it is tantamount to coupling these responsibilities together. Changes in one responsibility may affect other responsibilities. In addition, coupling multiple responsibilities together will also affect reusability.第二天早饭后，大校场东南聚集了许多人，正前方的平台上，何风亲自压阵，观看黎章和卫江较量比试。Include DSP and three-phase metering chipA4.1. 2.1 Eye risk, conjunctiva, lacrimal apparatus.昨儿还发愁在书院的日子要如何打发呢，今儿认识几位，往后也不怕寂寞了。8. Distribute the core material package and purchase the ingredients with higher price elasticity nearby. It not only ensures the unity of tastes, but also reduces the cost of food materials. According to the evaluation of famous consulting organizations, the cost ratio of one-yuan small hotpot brand is at least 27% lower than that of other brands.小玉，元旦快乐。