三点5×199÷3点五怎么用简便方法计算

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select * from tbl_Articles WHERE ArticleID=476843 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=476843 LIMIT 0,1
select * from tbl_Articles_sphinx where id=476843 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1121504,1116121,1110249,1115329,1125484,1125161,1128263,1104853,1112394,1112550,1121360,1033368,1119818,1114930,1104347,1069021,1123787,1114336,1121234,1115609,1125285,1127539,1127507,1123991,1108163,1121394,1109881,1103764,1123382,1113962) ORDER BY field (ArticleID,1121504,1116121,1110249,1115329,1125484,1125161,1128263,1104853,1112394,1112550,1121360,1033368,1119818,1114930,1104347,1069021,1123787,1114336,1121234,1115609,1125285,1127539,1127507,1123991,1108163,1121394,1109881,1103764,1123382,1113962)