小米4为什么不可以扩展内存呢

页面:/news/view-2074503/ | 耗时:0.9866 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=2074503 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2074503 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2074503 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1125087,1041781,1130744,1114116,1105657,1114238,1125632,1127649,1133121,1060683,1096372,1102712,1045127,1065583,1275331,1079736,1127481,1081087,1062880,987892,1062316,1045111,1100017,1064667,1086510,1115681,1058057,1096647,1098545,1129411) ORDER BY field (ArticleID,1125087,1041781,1130744,1114116,1105657,1114238,1125632,1127649,1133121,1060683,1096372,1102712,1045127,1065583,1275331,1079736,1127481,1081087,1062880,987892,1062316,1045111,1100017,1064667,1086510,1115681,1058057,1096647,1098545,1129411)