马斯克的美国政府效率部（DOGE）在证券交易委员会（SEC）安插第三名成员。（路透）

Group 1 - The core point of the article is that Elon Musk's Department of Efficiency (DOGE) has appointed a third member to the Securities and Exchange Commission (SEC) [1] Group 2 - The addition of a third member to the SEC by DOGE indicates a strategic move to influence regulatory decisions [1] - This development may have implications for the oversight of financial markets and could affect investor sentiment [1] - The involvement of Musk's organization in regulatory bodies highlights the intersection of technology and finance [1]