男人要保护好自己的无名指？常被忽视的冷知识
很多人小时候都干过，动辄就在书店拎一本《十万个为什么》《世界未解之谜》之类的，真正能学到什么东西另说，这种介于科普的课外闲书还是能支撑过家长的一边筛选的。不过据说现在人类对宏观宇宙的理解已经超过了地球的随便哪片海，看来还真是舍进求远了，不说别的，就自己身体这点东西，敢说全了解么？http://cdn1.powerapple.com/upload/cms_app/attachments/file/2014275/1412269552_956988.jpg
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