网速不好是什么原因

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select * from tbl_Articles WHERE ArticleID=1426856 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1426856 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1426856 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1124055,1104455,1080997,1093839,1072314,1097325,1124889,1071992,1076732,1041559,1091974,1089662,1124161,1110067,1066704,1120508,1074184,1103432,1074820,1067233,1088479,1065729,1123811,1042893,1088774,1062392,1070650,1059915,1073526,1076277) ORDER BY field (ArticleID,1124055,1104455,1080997,1093839,1072314,1097325,1124889,1071992,1076732,1041559,1091974,1089662,1124161,1110067,1066704,1120508,1074184,1103432,1074820,1067233,1088479,1065729,1123811,1042893,1088774,1062392,1070650,1059915,1073526,1076277)