問題詳情
17. 如下圖(十四)，在直角坐標平面上，ABCD為平行四邊形，已知 A(2 ,5)，B(3,－6)，C(8 , －6)，D(a ,b)，則a＋b為何？
(A)－
(B)
(C)10
(D)12
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
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