共三本书3 ~; T2 L+ D: x. F1 k' B$ T f
1.parallels:taking a stand in english 1 l( j! j: k @$ @* w8 _8 f. W1 G2.exploring content 15 o; l, m1 d6 _& b! u
3.calculus:a first course,stewart et.al 6 v) q4 {6 f7 E2 ~! Z( f如果哪位有以上课本请联系428-1130或发邮件到258945527@qq.com