有红桃、黑桃、梅花三种花色的A~5共15张牌,从中抽出3张,这3张牌的大小组合共有多少种? mwBFX25NuYoEooV1ZBlFS0+MM0V7QBwR5w6LpHF2uxMYnFVrPTJuhtq8m0apa0HE