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怎样分辨口罩是否靠谱?

 4 years ago
source link: https://www.v2ex.com/t/640158
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问与答 - @Lintech - 今天在淘宝看到日本进口的 N95 ¥49 有 65 个,下单迟了一秒就没了......有人说在淘宝搜“医用外科口罩”靠谱,可基本上都是蓝色的那一种,还都信誓旦旦的说自己通过某某标准,看的眼都花了...

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