条件中并没有说角B是以O为圆心以OA为半径的圆上的圆周角。ABE三点决定的圆，圆心不一定是O..

来源: wxcfan123 于 2022-05-06 19:16:08 [旧帖] [给我悄悄话] 本文已被阅读：次

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