一质点沿直线运动时的速度一时间图线如图所示，则以下说法中正确的是（     ） 

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='18457' and id < 1576696 and id<>'1576696' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='18457' and id > 1576696 and id<>'1576696' order by id asc limit 5