沙特称胡塞武装无人机袭击麦加，伊朗支持组织否认
Saudi says Houthis targeted Mecca with a drone, Iran-backed group rejects claim
The Organization of Islamic Cooperation condemned the strike as a "heinous" attack. Mecca is Islam's holiest site and the focal point of the annual Hajj pilgrimage.
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力