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甲盒子中装有3个编号分别为1,2,3的小球,乙盒子中装有3个编号分别为4,5,6...
甲盒子中装有3个编号分别为1,2,3的小球,乙盒子中装有3个编号分别为4,5,6的小球,从甲、乙两个盒子中各随机取一个小球,则取出两小球编号之和为奇数的概率是 .
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