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真係唔識~~
dono..............
i dunno i think is 6
6 secÉ
3 sec
3sec???
why??
5sec?
睇下··············

回復 #1 elvin88 的帖子

打6下:sleeps:
3 sec
don't know bo
7秒:019:
6 sec
4+x=3, so x=3-4=-1
5 C& h# ]% m' N" W  R6 K% c7+(-1)=6
- b7 x* d+ u9 B5 ?7 [so is 6 seconds
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