锎是什么有什么用途

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select * from tbl_Articles_data WHERE ArticleID=2750144 LIMIT 0,1
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SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1091719,698514,1120739,1100443,365452,754006,477099,691809,1104385,1212032,612902,1308505,1086812,1481978,1292904,580478,474602,1116882,783281,726161,1093535,504263,1119542,364548,703061,1112981,1473053,775099,603260,693521) ORDER BY field (ArticleID,1091719,698514,1120739,1100443,365452,754006,477099,691809,1104385,1212032,612902,1308505,1086812,1481978,1292904,580478,474602,1116882,783281,726161,1093535,504263,1119542,364548,703061,1112981,1473053,775099,603260,693521)