問題詳情
22. 如圖，直線L、直線M、直線S均為圓O的切線，A、B、C皆為其切點，若∠1＝100°，且 
為直徑，則下列何者錯誤？
(A)∠AOC＝80°
(B)∠BOC＝100°
(C)∠2＝100°
(D)L//M
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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