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城市进行，全国范围内选取的优胜者逐步晋级，再逐一淘汰。《Super Star K》成就了平民对于歌手梦想的追逐和狂欢。徐文长却不管这些，站在作战图前开始指点江山。2. Mathematical period: For a function f (x), if there is a non-zero constant T, so that when x takes every value in the domain, there is f (x + T) = f (x), then the function f (x) is called a periodic function. The nonzero constant T is called the period of this function.細細個跟阿媽喺英國生活，識講流利廣東話，某日發生咗一件事，令佢好想返香港，尋找素未謀面嘅爸爸…呢條故事線，原來會連住更多條線。彭越心中一惊，旋即似乎想通一些事情。The template method pattern defines the algorithm skeleton in an operation in an abstract class and delays the implementation of some specific steps to subclasses. The template method enables subclasses to redefine specific steps of the algorithm without changing the structure of the algorithm, thus achieving the effect of reusing codes. The specific structure diagram is shown below.Student Dance -- 欅坂46