怎么用咖啡渣去异味:WHAT IS 性价比?

来源：百度文库 编辑：高考问答 时间：2024/07/05 15:35:12

性能与价格的比值
也就是说同样的价格买到的东西性能越好，那么性价比越高，反之越低
或者说同样性能的东西，价格越便宜性价比越高，反之越低

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