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.

2026年1月15日 · 张伟 · 来源：dev资讯

Tellingly, Trump did not come back with an offer of sweeteners to promote investment. Instead, he threatened to block ExxonMobil investment in Venezuela.

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但實際上，張又俠和習近平在早年並無交集，兩人在北京所上的並不是同一所學校，之後，習近平到陝西下鄉，而張又俠到雲南服役。到1980年代初，習近平回到北京，在國防部任秘書；而張又俠開赴中越戰爭的前線並立下戰功。

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