原帖由 Lois 于 2009-2-4 22:39 发表 % O7 ^ k s& W$ ?* A1 {1 m m
you are wrong, and your friend is also wrong.1 [3 m2 W- A4 _% ^6 D5 T* K
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?