若一商人进货价降低8%,而售价保持不变,那么他的利润(按进货价而定)可由目前的x 发布时间:2017-04-11 20:26 │ 来源:www.tikuol.com 题型:选择题 问题: 若一商人进货价降低8%,而售价保持不变,那么他的利润(按进货价而定)可由目前的x%增加(x+10)%,则x%是[ ]A.12%B.15%C.30%D.50%
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