[单选题]自耦变压器适用的电压等级正确的是( )。(每题0.5分)（0.5）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69429' and id < 4496164 and id<>'4496164' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69429' and id > 4496164 and id<>'4496164' order by id asc limit 5