题目内容
下列各式:
,a+
,
(1-x),
,
,
+x,
,其中分式有( )个.
| 3 |
| x+y |
| 1 |
| m |
| 1 |
| 5 |
| 4x |
| π-3 |
| x2-y2 |
| 2 |
| 1 |
| x |
| 5x2 |
| x |
| A.2 | B.3 | C.4 | D.5 |
| 3 |
| x+y |
| 1 |
| m |
| 1 |
| x |
| 5x2 |
| x |
| 3 |
| x+y |
| 1 |
| m |
| 1 |
| x |
| 5x2 |
| x |
故选C.
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题目内容
| 3 |
| x+y |
| 1 |
| m |
| 1 |
| 5 |
| 4x |
| π-3 |
| x2-y2 |
| 2 |
| 1 |
| x |
| 5x2 |
| x |
| A.2 | B.3 | C.4 | D.5 |
| 3 |
| x+y |
| 1 |
| m |
| 1 |
| x |
| 5x2 |
| x |
| 3 |
| x+y |
| 1 |
| m |
| 1 |
| x |
| 5x2 |
| x |