原帖由 Lois 于 2009-2-4 22:39 发表 4 O T4 P5 I, v5 {1 z0 N! t9 {
you are wrong, and your friend is also wrong.' ~% e' k- Y# b4 m M! U
it has always been 1 year.
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I read the learner's book 5 years ago, which said one year holding time of class 7 to class 5. Did you take the exam 6 years ago?