AE |
EB |
1 |
6 |
AF |
FD |
1 |
2 |
AE |
EB |
1 |
6 |
AE |
DG |
1 |
3 |
AF |
FD |
AE |
DG |
1 |
3 |
A.a=2cm,b=5cm,c=5cm,d=10cm |
B.a=5cm,b=3cm,c=5cm,d=3cm |
C.a=30cm,b=2cm,c=0.8cm,d=2cm |
D.a=5cm,b=0.02cm,c=7cm,d=0.3cm |
A.5:2 | B.2:5 | C.1:4 | D.4:1 |
BD |
BF |
A.
| B.
| C.
| D.
|
1 |
2 |
A.
| B.
| C.2 | D.
|
AE |
EC |
A.
| B.2 | C.
| D.
|
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