在需要经常改变变压器变比来满足调压要求的变电所，应选择有载调压变压器。(    )  

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69463' and id < 4498537 and id<>'4498537' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69463' and id > 4498537 and id<>'4498537' order by id asc limit 5