| 释义 |
permutation and combination
基本例句
n.数排列组合
用作名词Unique because that particular permutation has not appeared before.之所以独一无二，是因为那种独特的基因排列组合以前不曾出现过。
Besides, the author understood the rule of negative multiplication completely and studied the problem ofpermutation and combinationdeeply.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。 |