A.0.6:0.2和
| B.6:10和8:20 | ||||||||
C.
| D.
|
1 |
4 |
3 |
4 |
1 |
3 |
1 |
4 |
1 |
3 |
1 |
4 |
3 |
4 |
3 |
5 |
a |
2 |
b |
3 |
a |
a+b |
a |
b |
b |
c |
A.2.3、4.1 | B.1.5、2.5、4.5、6.5 |
C.1.1、2.2、3.3、4.4 | D.1、2、2、4 |
A.2cm,3cm,4cm,5cm | ||||
B.1.5cm,2.5cm,4.5cm,6.5cm | ||||
C.1cm,
| ||||
D.1.1cm,2.2cm,3.3cm,4.4cm |
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