如果人民币对外币贬值，从理论上看，其可能的决定因素有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25442' and id < 2143620 and id<>'2143620' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25442' and id > 2143620 and id<>'2143620' order by id asc limit 5