从理论上讲，预试验至少应该做

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25510' and id < 2147582 and id<>'2147582' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25510' and id > 2147582 and id<>'2147582' order by id asc limit 5