鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?
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鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?^^
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) Z/ j9 ~4 L+ R2 ^答左回覆先好看答案呀^_^,唔係冇引咖啦- -v
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& h0 p+ |& I/ v9 b3 ~ans: 6 |