题目内容

52.小孙的口袋里有四颗糖，一颗巧克力味的，一颗果味的，两颗牛奶的。小孙
任意从口袋里取出两颗糖，他看了看后说，其中一颗是牛奶味的。问小孙取出的
另一颗糖也是牛奶味的可能性（概率）是多少？

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