every sort of permutation and combination is possible in human nature . 火的本性可能有各种交织和组合的情况。
principles and strategies for solving the applied problems in permutations and combinations 排列组合应用题的解题原则和策略
1 . the whole set is permutation and combination style, possible to add reduce colors, even add on reverse printing mechanism as required by custoners 1整机为排列组合式,可据用户要求增减印刷色组及境设反面印刷机构。
besides, the author understood the rule of negative multiplication completely and studied the problem of permutation and combination deeply 另外,萨玛瓦尔完全理解了负数的乘法法则,并对排列组合问题也有充分的认识。
1 . the whole set is in permutation and combination style, possible to add reduce color class and add on reverse printing mechanism as required by customers 1整机为排列组合式,可据用户要求增减印刷色组及增设反面印刷机构