64seconds& l* P4 u) ?$ p8 X
tvb now,tvbnow,bttvb6 G0 N! I7 x# {/ z Y
1 to 4 have 3floors = 48 sec公仔箱論壇1 ?% N9 Z5 b. }$ p0 g, L1 c& K+ e. E
avg. 48/3 = 16sec
6 ^- b) R* \0 _: G
4 O% O7 o& e5 Z. d$ b2 s& o& J公仔箱論壇4 to 8 have 4floors = 16x4
( n. O9 `4 J* l6 B5.39.217.77:8898= 64secs |