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锐角⊿ABC,AD,BE,CF为高，其交点为O，则不共圆的四点为（）
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锐角⊿ABC,AD,BE,CF为高，其交点为O，则不共圆的四点为（）
A、B,C,E,F
B、A,O,E,F
C、B,O,D,F
D、C,D,O,E
时间：2021-09-01 16:00
关键词：
含弘慕课
贵州遵义师院
中学几何研究
答案解析
A
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锐角⊿ABC,AD,BE,CF为高，其交点为O，则不共圆的四点为（）
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