教师的作用是什么

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select * from tbl_Articles WHERE ArticleID=108898 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=108898 LIMIT 0,1
select * from tbl_Articles_sphinx where id=108898 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1132775,1069271,1062965,1080441,1133355,1088910,1094057,1091731,1043355,1068150,1124400,1125149,1090424,1075777,1080086,1072093,1054612,1062959,1078182,1044735,1288643,1090835,1079546,3275185,1074820,1084873,1103287,1089263,1126262,1116371) ORDER BY field (ArticleID,1132775,1069271,1062965,1080441,1133355,1088910,1094057,1091731,1043355,1068150,1124400,1125149,1090424,1075777,1080086,1072093,1054612,1062959,1078182,1044735,1288643,1090835,1079546,3275185,1074820,1084873,1103287,1089263,1126262,1116371)