题目内容
在
;
;
;
;
+
中,属于分式的有( )
| 2 |
| x |
| x+y |
| 5 |
| 1 |
| 2-a |
| x2 |
| π-1 |
| 1 |
| 2 |
| 13 |
| A.2个 | B.3个 | C.4个 | D.5个 |
| x+y |
| 5 |
| x2 |
| π-1 |
| 1 |
| 2 |
| 13 |
| 2 |
| x |
| 1 |
| 2-a |
故选A.
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题目内容
| 2 |
| x |
| x+y |
| 5 |
| 1 |
| 2-a |
| x2 |
| π-1 |
| 1 |
| 2 |
| 13 |
| A.2个 | B.3个 | C.4个 | D.5个 |
| x+y |
| 5 |
| x2 |
| π-1 |
| 1 |
| 2 |
| 13 |
| 2 |
| x |
| 1 |
| 2-a |