如 3 N, a) o+ I8 U L, ^5 }1 Y9 g! [3 c+ R; \5 P
有幾多個五角形? 3 o3 ^# p+ z P8 ^4 n5 T X! m7 u; k: T: v
答案tvb now,tvbnow,bttvb+ l' C5 U k/ a1 C+ |0 _( r+ E! D
: k ^# j7 f9 W) e& k1 K
12個,
first time i see 46 q1 t; L `( E) M3 I, l
second i see 8 l( F6 h$ C9 `- a1 N
% ?& i+ p: s1 U
finally i see 12!tvb now,tvbnow,bttvb8 \, i- P, D7 {) k. X
公仔箱論壇! H9 x! Z2 y- Y2 [+ w# J7 u
thanks