下列描述动态楔形板不正确的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29517' and id < 2400877 and id<>'2400877' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29517' and id > 2400877 and id<>'2400877' order by id asc limit 5