为什么4g信号不可用

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select * from tbl_Articles WHERE ArticleID=365219 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=365219 LIMIT 0,1
select * from tbl_Articles_sphinx where id=365219 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(324389,1098569,1082193,1125335,2710570,1081647,3360395,349807,1489176,1126414,1128121,1097773,1492590,1100853,1127207,1123609,1060976,1500553,1073152,272651,108887,1097767,1127773,1064173,1075602,1064667,1509846,1129585,1053408,954015) ORDER BY field (ArticleID,324389,1098569,1082193,1125335,2710570,1081647,3360395,349807,1489176,1126414,1128121,1097773,1492590,1100853,1127207,1123609,1060976,1500553,1073152,272651,108887,1097767,1127773,1064173,1075602,1064667,1509846,1129585,1053408,954015)