ingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Helvetica Neue", Arial, sans-serif; font-size: 18px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); margin-top: 0px !important;">周末,如果你去超市里面买了两个蟠桃。价签上面打着净含量0.188 kg,售价7.48元。回到家里,家长问:这桃子多少钱一斤?ingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Helvetica Neue", Arial, sans-serif; font-size: 18px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255);">然后你一下子就懵了,因为你买的时候上面打的是公斤。你拿起价签一看,幸好“净含量”一栏的边上有个“单价”:19.9元/500克。同时,小学老师还曾告诉你:500克等于一斤。ingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Helvetica Neue", Arial, sans-serif; font-size: 18px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255);">
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