录取比例1:12是什么意思

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select * from tbl_Articles WHERE ArticleID=659373 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=659373 LIMIT 0,1
select * from tbl_Articles_sphinx where id=659373 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1899230,1073588,2472313,1061282,2701418,1287845,2414555,1369135,2606132,1054792,2496597,1069992,1533249,1049548,1061598,1028715,1275749,1108307,1054612,1062424,1570868,1069083,1315493,983947,1110730,1734211,1076576,1071003,1109607,1374512) ORDER BY field (ArticleID,1899230,1073588,2472313,1061282,2701418,1287845,2414555,1369135,2606132,1054792,2496597,1069992,1533249,1049548,1061598,1028715,1275749,1108307,1054612,1062424,1570868,1069083,1315493,983947,1110730,1734211,1076576,1071003,1109607,1374512)