条件反射为什么分高级和低级

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select * from tbl_Articles WHERE ArticleID=2089783 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2089783 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2089783 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1078286,1063097,3206795,2862058,1112266,1083265,3167840,1093993,231248,266729,1132481,1125104,290942,173739,1893376,1081991,1124915,1123130,2824351,182400,1671405,1115909,1065713,1129181,1127419,2168363,1123429,3199704,3027173,1119512) ORDER BY field (ArticleID,1078286,1063097,3206795,2862058,1112266,1083265,3167840,1093993,231248,266729,1132481,1125104,290942,173739,1893376,1081991,1124915,1123130,2824351,182400,1671405,1115909,1065713,1129181,1127419,2168363,1123429,3199704,3027173,1119512)