GMAT 考满分题库

- 数学PS -
In the xy-plane, the point (-2, -3) is the center of a circle. The point (-2, 1) lies inside the circle and the point (4, -3) lies outside the circle. If the radius r of the circle is an integer, then r =
  • A6
  • B5
  • C4
  • D3
  • E2
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正确答案: B

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