关于血液在血管内流动的直线速度，下列说法错误的是（

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30921' and id < 2488425 and id<>'2488425' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30921' and id > 2488425 and id<>'2488425' order by id asc limit 5