urspace 发表于 2012-1-12 00:34 3 m. y/ c6 N' Q9 ]
这个很难卖。。现在学校用的是第92版,91的还能凑合。。。90就没办法了
$ v4 c# S; }# }: h
9 Q- n4 }! f% S: S
Please notice that the 91th edition is a French edition. The 90th edition was used in last semester (Fall of 2011). There is no much difference between 90th and 92th editions. It is just some tax rates changed.