wps button/tether app/web ui,　　The report said that the PBC decisively put liquidity into the market through various methods, established "four lines of defense" to prevent liquidity risks of small and medium-sized banks, and stabilized market confidence in a timely manner through monetary policy operations, effectively curbing the risk of the contractor's bank to others. The spread of small and medium banks has played an important role in maintaining the smooth operation of financial markets such as currencies, bills and bonds.