$纳斯达克(.IXIC)$ The United States will not back down from its trade dispute with China, and might even double its tariffs, unless Beijing bows to U.S. demands, Vice President Mike Pence said on Saturday. $道琼斯(.DJI)$ $标普500(.INX)$ $阿里巴巴(BABA)$ $京东(JD)$ $恒生指数(HSI)$ $百度(BIDU)$ $腾讯控股(00700)$ $爱奇艺(IQ)$ $网易(NTES)$ $哔哩哔哩(BILI)$ $虎牙(HUYA)$ $苹果(AAPL)$ $亚马逊(AMZN)$