問題詳情
1. 如圖，已知直線LLLL4與圓O在同一平面上，且L1⊥L4，其相關位置如圖所示，則下列何者正確？ 
(A) L1為割線
(B) L2為切線
(C) L3為切線
(D) L4為割線
(A) L1為割線
(B) L2為切線
(C) L3為切線
(D) L4為割線
參考答案
無參考答案
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