A-share refers to the shares listed in China People's Stock Market and domestic stock market and quoted in RMB.
B-share refers to the shares quoted in US dollars listed in China People's Stock Market and domestic stock market (Shanghai Stock Market).
Or stocks quoted in Hong Kong dollars (Shenzhen Stock Market).
Bull market refers to the market situation in which the stock market rises repeatedly for a period of time, which is called bull market.
Bear market refers to the market situation in which the stock market falls repeatedly for a period of time, which is called bear market.