.电力系统中，电气设备选择的一般条件有(    )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69521' and id < 4504031 and id<>'4504031' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69521' and id > 4504031 and id<>'4504031' order by id asc limit 5