A new study shows that exposure to two specific 'forever chemicals' may accelerate biological aging, especially in middle-aged men. Researchers revealed a link between faster epigenetic aging, and two of these alternatives, PFNA and PFOSA, a precursor of PFOA.

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（三）有符合本法规定的组成人员；

Not only do the team experience extreme cold, but summer in Antarctica also comes with non-stop daylight, ending with a sunset that lasts weeks.，更多细节参见爱思助手下载最新版本

13版，这一点在一键获取谷歌浏览器下载中也有详细论述

圖像來源，BBC CHINESE/ TING CHIANG。WPS官方版本下载对此有专业解读

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