在传统的钉住汇率制下，汇率波动幅度一般不超过（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27090' and id < 2246642 and id<>'2246642' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27090' and id > 2246642 and id<>'2246642' order by id asc limit 5