特征辐射是核外电子在原子内特定能级间跃迁形成的，下列说法正确的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29508' and id < 2400247 and id<>'2400247' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29508' and id > 2400247 and id<>'2400247' order by id asc limit 5