在a＞0，b＞0的条件下，四个结论：① ，② ，③ ，④ ；其中正确的个数是

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='13513' and id < 1097659 and id<>'1097659' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='13513' and id > 1097659 and id<>'1097659' order by id asc limit 5