美国数学建模竞赛2019年O奖论文（B题）

[{"title":"（ 6 个子文件 10.03MB ） 美国数学建模竞赛2019年O奖论文（B题）","children":[{"title":"B","children":[{"title":"2019_MCM_Problem_B.pdf <span style='color:#111;'> 791.63KB </span>","children":null,"spread":false},{"title":"1915782.pdf <span style='color:#111;'> 1.43MB </span>","children":null,"spread":false},{"title":"1924588.pdf <span style='color:#111;'> 2.13MB </span>","children":null,"spread":false},{"title":"1923964.pdf <span style='color:#111;'> 2.04MB </span>","children":null,"spread":false},{"title":"1908286.pdf <span style='color:#111;'> 3.50MB </span>","children":null,"spread":false},{"title":"1908904.pdf <span style='color:#111;'> 1.75MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]