問題詳情
4. 若圓O的圓心坐標為（2，0），半徑為5，則下列那一條直線為圓O的割線？
(A)x-7=0
(B)x+1=0
(C)y-5=0
(D)y+6=0
(A)x-7=0
(B)x+1=0
(C)y-5=0
(D)y+6=0
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增
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