GMAT 考满分题库

- 数学PS -
If m denotes a number to the left of 0 on the number line such that $$m^{4}$$ is less than$$\frac{1}{81}$$ , then the the reciprocal of $$m^{2}$$ must be
  • Aless than -3
  • Bbetween -$$\frac{1}{3}$$ and 0
  • Cbetween 0 and $$\frac{1}{9}$$
  • Dbetween $$\frac{1}{9}$$ and 1
  • Egreater than 9
显示答案
正确答案: E

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