长期以来，维生素D被视为“阳光维生素”，不仅关乎骨骼健康，更被寄予预防糖尿病、高血压和心血管疾病的厚望。然而，关于它是否真能改善血糖、血脂和血压的临床研究结果却众说纷纭——有人发现显著益处，也有人认为毫无作用。这种矛盾背后，究竟隐藏着怎样的真相？

SEOUL, Aug. 15 (Xinhua) -- South Korean President Lee Jae-myung on Friday vowed to take consistent measures to reduce tensions and restore trust with the Democratic People's Republic of Korea (DPRK).

育儿补贴本是国家给予广大家庭的暖心福利，却被这些不法分子利用来实施诈骗，实在可恶。 但只要我们每个人都提高防范意识，掌握正确的应对方法，就能让骗子的阴谋无处遁形。

O setor de entrega expressa da China processou 112,05 bilhões de pacotes nos primeiros sete meses de 2025, um aumento de 18,7% em termos anuais, segundo dados oficiais divulgados nesta quinta-feira.

China's express delivery sector handled 112.05 billion parcels in the first seven months of 2025, up 18.7 percent year on year, official data showed on August 14. The country's postal industry handled ...