問題詳情
3. 坐標平面上有兩向量 
。請問下列哪一個向量的長度最大？
(A)
(B)
(C)
(D)
(5) 
。請問下列哪一個向量的長度最大？(A)
(B)
(C)
(D)
(5)
參考答案
答案：A
難度：困難0.296296
統計：A(8),B(3),C(9),D(3),E(0)
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