难不难, J! C0 i0 Y3 q6 x& H$ R6 j4 B( _& y
1 X% E4 u8 X8 I* o
I don't think anybody can answer this question accurately... " q6 \+ N. w8 E3 z: _2 P, r. G3 X. P) v" K
for some people, 难9 a; g* t2 N. g* ?$ Z3 v, f) Q5 Z- C
for some people, 不难 " \% y) S+ \# S 1 P- {! N3 a- D2 MEvaluate yourself first