GMAT 考满分题库

- 数学PS -
If x and y are different prime numbers, each greater than 2, which of the following must betrue?

I $${x}+{y} \neq{91} $$

II $$x - y$$ is an even integer.

III $$\frac{x}{y}$$is not an integer.
  • AII only
  • BI and II only
  • CI and III only
  • DII and III only
  • EI,IIandIII
显示答案
正确答案: E

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