鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?/ k+ o. h( m2 _
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& @ H4 p% L% n) b; t2 A, q9 ^6 F5.39.217.77:8898鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?^^
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# J: c4 @" l+ c) D5.39.217.77:8898答左回覆先好看答案呀^_^,唔係冇引咖啦- -v
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ans: 6 |