鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?$ e4 x2 U( Y0 n/ L, l; m
公仔箱論壇 E& X/ N, S" h1 B5 B: J
$ d: p# g9 L' ltvb now,tvbnow,bttvb鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?^^
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答左回覆先好看答案呀^_^,唔係冇引咖啦- -v
3 H: _9 e; e. u! U. W: e, z4 X5.39.217.77:88985.39.217.77:8898$ y0 g* b- J+ _. C R' H
ans: 6 |