(1) 兜售讲义：
https://imgur.com/j2MjLTD 工数题库
https://imgur.com/HIRHYLR 工数题库
https://imgur.com/gqX6Gki 喻超凡工数题库内页
https://imgur.com/WYGV4Yv 喻超凡工数题库 线代题库
https://imgur.com/Ls2ejqC 喻超凡工数题库T1-T7
https://imgur.com/gqX6Gki 喻超凡工数题库内页
另有宋子文全新工数讲义整套
(2) 欲售价格：来信报价
(3) 交易方式：邮寄
(4) 备注：尚有其他工数相关书籍等