問題詳情
12. 在坐標平面上，圓O1半徑為7，圓心O1（－6 ,7)， 圓O2半徑為 4，圓心O2（1 , －2），求兩圓共有幾條公切線？
(A) 4
(B) 3
(C) 2
(D) 1 條
(A) 4
(B) 3
(C) 2
(D) 1 條
參考答案
答案：A
難度：計算中-1
書單：沒有書單，新增
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