“蜻蜓点水”的原因是（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27101' and id < 2247184 and id<>'2247184' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27101' and id > 2247184 and id<>'2247184' order by id asc limit 5