1) interbank lending: a market where financial institutions conduct short-term financing activities in the form of currency lending. 2) Inter-bank lending has become the first choice for short-term fund management of commercial banks. When short-term funds are short or loose, commercial banks should first consider integrating or lending funds in the interbank lending market, change the previous practice of relying on the People's Bank of China for capital investment, and actively operate in the interbank lending market. 3) Option B is only exercised by the central bank when the interbank lending market is underdeveloped or not established. Option C, many loans of commercial banks, such as medium and long-term loans, are not option D that can be recovered if you want to. It is not feasible to solve the short-term capital surplus and deficiency through capital injection, and capital injection is also facing greater constraints. Option e, selling securities is not a common method. On the one hand, the cost of this method will be greater than that of interbank lending. On the other hand, many banks invest in securities for the pursuit of. 4) Knowledge points: commodities and banks, interbank lending business of commercial banks (basic concepts)