当信号频率为100Hz时，下列（

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29477' and id < 2398233 and id<>'2398233' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29477' and id > 2398233 and id<>'2398233' order by id asc limit 5