微博为什么有的时候出现200

页面:/news/view-1745737/ | 耗时:0.8330 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=1745737 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1745737 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1745737 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1294379,363718,1077523,1120292,332570,3076579,1296533,1329871,1554296,900694,1072673,1120603,270532,1372281,1553710,147978,248995,1432971,1078885,284927,1129243,1071307,1277036,822635,1109579,1526792,260574,1086162,462492,1364825) ORDER BY field (ArticleID,1294379,363718,1077523,1120292,332570,3076579,1296533,1329871,1554296,900694,1072673,1120603,270532,1372281,1553710,147978,248995,1432971,1078885,284927,1129243,1071307,1277036,822635,1109579,1526792,260574,1086162,462492,1364825)