明星中概股盘前多数下跌，百度跌0.94%，京东跌1.20%

Group 1 - The majority of Chinese concept stocks experienced a decline in pre-market trading on December 3, with Baidu down by 0.94% [1] - JD.com saw a decrease of 1.20% in pre-market trading [1] - Xpeng Motors dropped by 1.68% [1] - Alibaba's stock fell by 1.82% [1]