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小学生挑战2022年高考题？我们来试试！“纯小学知识”
（2022年高考选择题）从2到8的7个数中随机抽取2个不同的数，则2个数互质的概率是（）。A1/6 B1/3 C1/2 D2/3
小升初数学择校招生题 （培优拓展题 思维训练题）7/30
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