鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?* l2 K6 k" B; O* G- V( i4 Y
5.39.217.77:8898- Q# I8 p' ]$ @5 U! M
( ^7 X' R* A; y( G0 Z2 i3 l6 q5.39.217.77:8898鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?^^4 H8 s* s" [8 l& \! q
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答左回覆先好看答案呀^_^,唔係冇引咖啦- -v5.39.217.77:8898" Y2 y: i/ ~9 P# k# s0 A
" P1 C$ V7 l1 ]$ Y; I) i+ p5.39.217.77:8898ans: 6 |