例如,如果規定,隻有某些ZIP CODE,或收入特征,年齡特征,性別特征等來篩選的話,那就破壞了隨機性。
例如,如果規定,隻有某些ZIP CODE,或收入特征,年齡特征,性別特征等來篩選的話,那就破壞了隨機性。
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