[{"title":"( 6 个子文件 616KB ) 北邮通信电子电路自测题","children":[{"title":"通信电路自测题","children":[{"title":"第五章自测题.ppt <span style='color:#111;'> 222.00KB </span>","children":null,"spread":false},{"title":"第四章自测题.ppt <span style='color:#111;'> 241.00KB </span>","children":null,"spread":false},{"title":"第五章自测题(续).ppt <span style='color:#111;'> 198.00KB </span>","children":null,"spread":false},{"title":"第二章自测题.ppt <span style='color:#111;'> 221.50KB </span>","children":null,"spread":false},{"title":"第六章自测题.ppt <span style='color:#111;'> 163.50KB </span>","children":null,"spread":false},{"title":"第三章自测题.ppt <span style='color:#111;'> 407.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]