問題詳情
7.有一時鐘的秒針長為10公分，針尖移動一周的時間為60秒，則在一周的過程裡，針尖的平均速率為何？
(A)
(B)
(C)8
(D)0
(E)
公分/秒。
(A)
(B)
(C)8
(D)0
(E)
公分/秒。
參考答案
答案：[無官方正解]
難度：非常困難0
統計：A(1),B(0),C(0),D(0),E(0)
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