题目内容
根据
×4.5=
×2.5,下面的选项中的比例式( )是不成立的.
| 1 |
| 3 |
| 3 |
| 5 |
A.2.5:
| B.
| ||||||||
C.
|
A、2.5:
=4.5:
,
×4.5=
×2.5,
B、
:
=2.5:4.5;
×4.5=
×2.5,
C、
:
=4.5:2.5;
×4.5=
×2.5;
故选:A.
| 1 |
| 3 |
| 3 |
| 5 |
| 1 |
| 3 |
| 3 |
| 5 |
B、
| 1 |
| 3 |
| 3 |
| 5 |
| 1 |
| 3 |
| 3 |
| 5 |
C、
| 1 |
| 3 |
| 3 |
| 5 |
| 3 |
| 5 |
| 1 |
| 3 |
故选:A.
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