a representative sample的意思|示意

具代表性的样本 ... woman,woman 女人,女人 a representative sample 具代表性的样本 account representative 管理专员-企业组; 客户代表 [编辑：郭毅萌 ...

样品 ... a representative sample 样品 water quality representative sample 办质代表样 National Representative Sample 全国代表性样本 ...