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1. 甲、乙、丙三人同時同地出發,依同方向繞長 480 公尺的圓形水池而走。已知甲每秒鐘走 2 公尺,乙每秒鐘走 3 公尺,丙每秒鐘走 4 公尺,則出發後幾分鐘三人會第一次在出發點相遇?(A)8 分鐘
問題詳情
1. 甲、乙、丙三人同時同地出發,依同方向繞長 480 公尺的圓形水池而走。已知甲每秒鐘走 2 公尺,乙每秒鐘走 3 公尺,丙每秒鐘走 4 公尺,則出發後幾分鐘三人會第一次在出發點相遇?
(A)8 分鐘
(B)12 分鐘
(C)16 分鐘
(D)24 分鐘
參考答案
上一篇 :
17.如圖(十)所示,甲、乙是內分泌體,會分泌與調節血糖濃度有關的激素,關於甲、乙所分泌的此類激素對血糖濃度調節的敘述,下列何者正確? (A)甲、乙的激素皆可降低血糖濃度(B)甲、乙的激素皆只可增加血
下一篇 :
(V) Roy lived alone in the country. Every year, he would plant tomatoes in his garden, inmemory
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