完了，據報美國最快7月限制向中國出口AI晶片，nvda,amd大跌

https://udn.com/news/story/7333/7263176?from=udn-catebreaknews_ch2#:~:text=%E7%BE%8E%E5%9C%8B%E5%95%86%E5%8B%99%E9%83%A8%E6%93%9A%E5%A0%B1,AI%E4%BC%81%E6%A5%AD%E6%8F%90%E4%BE%9B%E9%9B%B2%E6%9C%8D%E5%8B%99%E3%80%82