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23-24七年级下·上海杨浦·期中 查看更多[2]
更新时间:2024-04-24 16:06:12
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【推荐1】有五张背面完全相同的纸质卡片,其正面分别标有数:
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, 将它们背面朝上洗匀后,从中随机抽取一张卡片,则其正面的数比3小的概率是_______ .
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【推荐1】已知
的整数部分是a,小数部分是b,则
的值为__________ .
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【推荐2】已知
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