变压器一、二次侧感应电势之比等于（     ）之比。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68475' and id < 4421127 and id<>'4421127' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68475' and id > 4421127 and id<>'4421127' order by id asc limit 5