关于sum from k=0 to [n-r/m](C_n^(r+km))一般式的推导与运用

The general deduction and application of sum from k=0 to [n-r/m](C_n^(r+km))

对一定间隔的连续组合数证明问题进行一般性总结,系统地给予一般式证明,导出推论,结合实际问题加以运用。

The paper gives the general summary of the proof of the continuous combination number of certain interval and systematically gives the proof of the general expression which leads to deduction and is used in practice.