原帖由 Lois 于 2009-2-4 22:39 发表 $ w! a0 X Q4 _( N, C- |% x/ Uyou are wrong, and your friend is also wrong. 1 ]& |/ _9 k1 F0 ]+ Cit has always been 1 year.
N9 w" S5 e$ x+ @* M* VI 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?