64seconds
1 U' K5 Z& N) r2 G1 y# j; Z' j8 y5.39.217.76
6 ]7 N* F7 g' v* _: n5.39.217.761 to 4 have 3floors = 48 sec公仔箱論壇, E( y6 {/ H; E& s4 X( i& H- r% @
avg. 48/3 = 16sectvb now,tvbnow,bttvb, Z7 D$ X$ j) l5 u
tvb now,tvbnow,bttvb4 c7 E! ]" S% A. A2 x) }, o: J9 r, Y
4 to 8 have 4floors = 16x4$ G" V" B8 B# x! B4 L
= 64secs |