为什么有时候短信发不出去

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select * from tbl_Articles_data WHERE ArticleID=2317998 LIMIT 0,1
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SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1351647,1098436,1333849,2350816,2819432,1102712,3226252,1114478,1087039,368342,445464,1085250,689624,1118993,145540,584692,987892,1090034,1068148,2644395,1090048,1123217,1097635,2121476,704847,136977,1109579,1089718,1278652,1087884) ORDER BY field (ArticleID,1351647,1098436,1333849,2350816,2819432,1102712,3226252,1114478,1087039,368342,445464,1085250,689624,1118993,145540,584692,987892,1090034,1068148,2644395,1090048,1123217,1097635,2121476,704847,136977,1109579,1089718,1278652,1087884)