题目内容
指出下列各式中,
,
,
,2x2-1,
,
+
b,______是分式.
| x2 |
| 2x-1 |
| 4 |
| 5b+c |
| 3 |
| 7 |
| 2a |
| 3a |
| 2a |
| 3 |
| 1 |
| 2 |
| 3 |
| 7 |
| 2a |
| 3 |
| 1 |
| 2 |
| x2 |
| 2x-1 |
| 4 |
| 5b+c |
| 2a |
| 3a |
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题目内容
| x2 |
| 2x-1 |
| 4 |
| 5b+c |
| 3 |
| 7 |
| 2a |
| 3a |
| 2a |
| 3 |
| 1 |
| 2 |
| 3 |
| 7 |
| 2a |
| 3 |
| 1 |
| 2 |
| x2 |
| 2x-1 |
| 4 |
| 5b+c |
| 2a |
| 3a |