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51.—人向北行10 m ’轉向東行5 m,再轉向南行5 m ’其位移量爲多少m ?(A)5(B) (C)10(D)15
問題詳情
51.—人向北行10 m ’轉向東行5 m,再轉向南行5 m ’其位移量爲多少m ?
(A)5
(B)
(C)10
(D)15
參考答案
答案:B
難度:簡單0.850746
統計:A(60),B(684),C(40),D(20),E(0)
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