已知不等式ax +bx+1<0的解集为{x|-1<x<2},则ab=

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='16192' and id < 1360930 and id<>'1360930' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='16192' and id > 1360930 and id<>'1360930' order by id asc limit 5