4、markethasadealercontinuouslybuyingandsellingandtakingpositions.存款准备金率Depositreserverationisthecentralbankthatsetstheminimumreserveseachbankmustholdtocustomerdepositsandnotes..作用1,ensurethe liquidityofcommercial bank funds2Adjustthetotalmoneysupply贴现率Commercialbanksdeal