1.在平面上画出两条直线,交点的个数最少是多少个?交点的个数最多是多少个?2.在平面上画出三条直线,交点的个数最少是多少个?交点的个数最多是多少个?3.在平面上画出四条直线,
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![1.在平面上画出两条直线,交点的个数最少是多少个?交点的个数最多是多少个?2.在平面上画出三条直线,交点的个数最少是多少个?交点的个数最多是多少个?3.在平面上画出四条直线,](/uploads/image/z/1057057-25-7.jpg?t=1.%E5%9C%A8%E5%B9%B3%E9%9D%A2%E4%B8%8A%E7%94%BB%E5%87%BA%E4%B8%A4%E6%9D%A1%E7%9B%B4%E7%BA%BF%EF%BC%8C%E4%BA%A4%E7%82%B9%E7%9A%84%E4%B8%AA%E6%95%B0%E6%9C%80%E5%B0%91%E6%98%AF%E5%A4%9A%E5%B0%91%E4%B8%AA%EF%BC%9F%E4%BA%A4%E7%82%B9%E7%9A%84%E4%B8%AA%E6%95%B0%E6%9C%80%E5%A4%9A%E6%98%AF%E5%A4%9A%E5%B0%91%E4%B8%AA%EF%BC%9F2.%E5%9C%A8%E5%B9%B3%E9%9D%A2%E4%B8%8A%E7%94%BB%E5%87%BA%E4%B8%89%E6%9D%A1%E7%9B%B4%E7%BA%BF%EF%BC%8C%E4%BA%A4%E7%82%B9%E7%9A%84%E4%B8%AA%E6%95%B0%E6%9C%80%E5%B0%91%E6%98%AF%E5%A4%9A%E5%B0%91%E4%B8%AA%EF%BC%9F%E4%BA%A4%E7%82%B9%E7%9A%84%E4%B8%AA%E6%95%B0%E6%9C%80%E5%A4%9A%E6%98%AF%E5%A4%9A%E5%B0%91%E4%B8%AA%EF%BC%9F3.%E5%9C%A8%E5%B9%B3%E9%9D%A2%E4%B8%8A%E7%94%BB%E5%87%BA%E5%9B%9B%E6%9D%A1%E7%9B%B4%E7%BA%BF%EF%BC%8C)
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