治理通货紧缩时，要达到改变利率和货币供给量的目标，中央银行可实施的政策包 括（）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25267' and id < 2138589 and id<>'2138589' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25267' and id > 2138589 and id<>'2138589' order by id asc limit 5