题干

若圆(x﹣3)2+(y+5)2=r2上有且只有两个点到直线4x﹣3y=17的距离等于1,则半径r的取值范围是(   )

A:(0,2)

B:(1,2)

C:(1,3)

D:(2,3)

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答案(点此获取答案解析)

C

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