| 9 |
| 25 |
| 9 |
| 25 |
| 1 |
| 2 |
| 9 |
| 25 |
| 9 |
| 25 |
| 1 |
| 2 |
| 18 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 1 |
| 2 |
| 9 |
| 50 |
| 18 |
| 25 |
| 9 |
| 50 |
| 9 |
| 25 |
| 9 |
| 25 |
②当a是假分数
| 3 |
| 2 |
| 9 |
| 25 |
| 9 |
| 25 |
| 3 |
| 2 |
| 6 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 3 |
| 2 |
| 18 |
| 50 |
| 6 |
| 25 |
| 18 |
| 50 |
| 9 |
| 25 |
| 9 |
| 25 |
③当a=1时;
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
所以当a是真分数,
| 9 |
| 25 |
| 9 |
| 25 |
故选:A.
编辑:chaxungu时间:2026-04-27 14:07:58分类:小学数学题库
| 9 |
| 25 |
| 9 |
| 25 |
| 1 |
| 2 |
| 9 |
| 25 |
| 9 |
| 25 |
| 1 |
| 2 |
| 18 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 1 |
| 2 |
| 9 |
| 50 |
| 18 |
| 25 |
| 9 |
| 50 |
| 9 |
| 25 |
| 9 |
| 25 |
| 3 |
| 2 |
| 9 |
| 25 |
| 9 |
| 25 |
| 3 |
| 2 |
| 6 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 3 |
| 2 |
| 18 |
| 50 |
| 6 |
| 25 |
| 18 |
| 50 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
| 9 |
| 25 |
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