Since the end of a long-term stock market downturn, the risk and foam become gradually hot topics, in the process of bear market to bull market and then mad market, and then to the end of the current bear market. 自从股市结束了长期的低迷,从熊市到牛市,再到疯牛,最终再到现在的熊市的过程中,风险和泡沫逐渐成为人们热议的话题。