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GMAT 考满分题库

- 数学PS -

A set of numbers has the property that for any number t in the set, t + 2 is in the set. If -1 is in the set, which of the following must also be in the set?

I. -3

II. 1

III. 5

 

  • AI only
  • BII only
  • CI and II only
  • DII and III only
  • EI, II, and III
显示答案
正确答案: E

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