請問下條應用P方法計定用C方法計 ? 為甚麼 ?
In the word “SHINGWAI”, 3 letters are takenout at the same time, find the total number of ways
收錄日期: 2021-04-13 19:11:31
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20121218000051KK00015