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排列组合应用问题的解法独特,对抽象能力和逻辑思维能力要求较高,同学们普遍感觉难学.现介绍六种行之有效的解题方法.
The unique solution to the problem of permutation and combinational application has high requirements for abstraction ability and logical thinking ability. Students generally feel that it is difficult to learn. Now we introduce six effective problem-solving methods.