请问淘气值为什么会下降

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select * from tbl_Articles WHERE ArticleID=2871881 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2871881 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2871881 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(465502,1818974,2467493,80897,81609,1132107,1186801,1108686,1106042,1131777,1129443,1130870,80974,81161,1275239,86380,93722,983998,80692,2550243,1128859,80762,3286372,1125091,1129291,80471,1102190,81039,81084,2405709) ORDER BY field (ArticleID,465502,1818974,2467493,80897,81609,1132107,1186801,1108686,1106042,1131777,1129443,1130870,80974,81161,1275239,86380,93722,983998,80692,2550243,1128859,80762,3286372,1125091,1129291,80471,1102190,81039,81084,2405709)