研究人员到目前为止依然给不出任何合理解释。 一台宇宙粒子探测器近日在南极上空探测到一个无法解释的奇特信号。这个信号可能表明宇宙中存在着某种新粒子，亦或是在粒子之间存在某种未知的相互作用。

Al-Sudani's directive was made during a meeting with the Central Emergency Operations Room for Radiological and Nuclear Incidents to assess the country's readiness to address potential emergencies, ...

SYDNEY, June 19 (Xinhua) -- Australia's state of Western Australia (WA) has abandoned efforts to eradicate an invasive beetle species that has destroyed thousands of trees and will instead focus on ...

这几年门诊里，越来越多刚过 50 岁的大姐来诉苦：“我最近忘事特别厉害，刚放下的钥匙转眼就找不着”“上班开会时老走神，别人说话我得反应半天”“有时候脾气也变暴躁了……” 一开始很多人以为是 “更年期” 或 ...