题目
题型：不详难度：来源：
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答案
∴第19个数的分子是2×19-1=37，
∵分母是2、4、6、8…，
∴第19个数的分母是2×19=38，
∴这一组数的第19个数是：
| 37 |
| 38 |
故答案为：
| 37 |
| 38 |
核心考点
举一反三
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| 37 |
| 38 |
| 37 |
| 38 |
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| 56 |
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| 2011 |
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| 2012 |
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