物体在合外力作用下做直线运动的v一t图象如图所示．下列表述正确的是：（  ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='19223' and id < 1671085 and id<>'1671085' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='19223' and id > 1671085 and id<>'1671085' order by id asc limit 5