题目内容
设A,B均为n阶矩阵,则
( )。
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='8547' and id < 691444 and id<>'691444' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='8547' and id > 691444 and id<>'691444' order by id asc limit 5