MySQL Query Error select id,title,subtitle,class from dx_kskm_news where class='参考书' and kskm in ('101思想政治理论','201英语一','611军事基础','811海军军事综合','711军事基础','810导弹武器技术','701军事基础','903国防动员基础','811专业基础','701军事学基础','804战略学基础理论（三）','201英语一或202俄语或203日语','810智能化战争与作战','803战略学基础理论（二）','802战略学基础理论（一）','611军事学基础理论','850军事战略学','851军民融合基础理论','852战争动员学','902战略基础','902国防动员基础','651军事学基础','873国防动员基础理论','902战略学基础理论','850战略学','751军事基础','802战略学基础理论','811专业综合','842专业基础') order by kskm desc limit -1550,50 Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in D:\wwwroot\dddjyky\wwwroot\lanmu.php on line 331
