For example, most pieces of music begin and end with the same chord, a somewhat mysterious rule which is actually a result of basic chord progression rules.
这里有些概括和有用的乐感原则。例如每一首乐曲都是在同一个和弦开始和结束的。这神秘的规则其实是基本和弦进行的规则。
There is a simple formula of Bernoulli number with using extraction a derivative rule of compound function and progression theory and so a given important value in the theory and application.
利用复合函数的求导规则和级数理论能够得出 贝努利数的简明公式■ ，在理论和应用上都具有重要的价值。
There is a simple formula of Bernoulli number with using extraction a derivative rule of compound function and progression theory and so a given important value in the theory and application.
利用复合函数的求导规则和级数理论能够得出 贝努利数的简明公式■ ，在理论和应用上都具有重要的价值。
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