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nguyenanh27
2 năm trước
Trên tia Ox vẽ hai điểm C, D sao cho OC=4cm , OD=8cm a, Điểm C có nằm giữa O và D ko? Vì sao b, Điểm C có là trung điểm của đoạn thẳng OD ko? Vì sao
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