urspace 发表于 2012-1-12 00:34 6 n, O. p! q) S, Q; a; }9 f j: u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
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) n4 ?8 s3 h: R cPlease 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.