原帖由 Lois 于 2009-2-4 22:39 发表 ! m) U% E7 @: k8 W1 [! h1 o- N- ^you are wrong, and your friend is also wrong.$ {" h# T4 H" ^6 G
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?