[{"title":"( 3 个子文件 1.06MB ) 现代信息检索导论复习要点","children":[{"title":"ir final.pdf <span style='color:#111;'> 953.26KB </span>","children":null,"spread":false},{"title":"信息检索总复习要点.txt <span style='color:#111;'> 712B </span>","children":null,"spread":false},{"title":"2010-2011信息检索考题.pdf <span style='color:#111;'> 222.49KB </span>","children":null,"spread":false}],"spread":true}]