主变压器重瓦斯保护和轻瓦斯保护的正电源，正确接法是(   )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69519' and id < 4503786 and id<>'4503786' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69519' and id > 4503786 and id<>'4503786' order by id asc limit 5