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Former U.S. Treasury Secretary to quit public roles after Epstein files release

WASHINGTON, Nov. 17 (Xinhua) -- Former U.S. Treasury Secretary Larry Summers announced Monday that he will be "stepping back from public commitments" after the release of documents showing his email ...
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红绿灯或迎百年变革，美研究提议添加“白灯”供自动驾驶汽车使用

百年来，红绿灯一直是调节全球交通的共同语言，但随着自动驾驶汽车时代的来临，这套传统系统正迎来变革。美国北卡罗来纳州立大学的研究团队提出一项突破性构想：为交通信号灯增加第四种颜色──白色，专为集成人类驾驶与自动驾驶车辆（Autonomous ...