原帖由 Lois 于 2009-2-4 22:39 发表 ! m* Z: d, Y% h7 e3 N) _you are wrong, and your friend is also wrong. ; l8 k2 ?3 `! r, t4 r" v+ Ait has always been 1 year.
! G# M$ _3 ~. t
. x! G4 R: n: B; ^5 l' P& M
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?