GMAT 考满分题库

- 数学PS -
The positive integers containing “2” are arranged in order from small to large. For example, 2, 12, 20, 21, 22, …. What's the 100th number?
  • A260
  • B261
  • C262
  • D263
  • E264
显示答案
正确答案: B

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