buy securities是买入债券？？

问题如下：

Which of the following action will a central bank most likely take if it wants to decrease interest rate :

选项：

A.

buy securities.

B.

decrease available funds for lending

C.

decrease money supply.

解释：

A is correct.

This is the Fed's most commonly used tool and is important in achieving the policy rate: central banks buy securities in the open market to decrease interest rate .

考点：货币政策实施工具

解析：通过公开市场操作，央行买入债券，向市场注入货币，从而增加货币供给，降低市场利率水平。A选项正确。

减少可外借的货币可以看做是减少了货币的供给，这意味着利率水平会升高，因此B选项错误，C选项也错误。