鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?% R: U( ^0 y# b& n/ v# f; P9 B
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5.39.217.77:8898! _+ f* ~8 r' j, n R
鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?^^
0 }6 X! r9 Z& p5 z5.39.217.77:8898* U5 \* N' X$ F* K! u3 m& K
答左回覆先好看答案呀^_^,唔係冇引咖啦- -v
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