题目内容
下列式子:
,
,
(x+y),
,9x
,其中分式的个数是( )个.
| 3 |
| a |
| a |
| 3 |
| 3 |
| 4 |
| a-b |
| a |
| 10 |
| y |
| A.2 | B.3 | C.4 | D.5 |
| a |
| 3 |
| 3 |
| 4 |
| 3 |
| a |
| a-b |
| a |
| 10 |
| y |
故选B.
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题目内容
| 3 |
| a |
| a |
| 3 |
| 3 |
| 4 |
| a-b |
| a |
| 10 |
| y |
| A.2 | B.3 | C.4 | D.5 |
| a |
| 3 |
| 3 |
| 4 |
| 3 |
| a |
| a-b |
| a |
| 10 |
| y |