二项分布概率公式简介:She nodded, and said to Lin Anqin and Su Chengye, "Auntie, uncle, I'm going to see Sister Ke Shu to play." After getting the permission, she took an umbrella and went out. Xiao Nizi was very happy.
She nodded, and said to Lin Anqin and Su Chengye, "Auntie, uncle, I'm going to see Sister Ke Shu to play." After getting the permission, she took an umbrella and went out. Xiao Nizi was very happy.