题干
如图，在四边形ABCD中，AC、BD相交于点F，点E在BD上，且
=
=
．
| A |
| B |
| A |
| E |
| B |
| C |
| E |
| D |
| A |
| C |
| A |
| D |
| A |
| B |
| A |
| E |
| B |
| C |
| E |
| D |
| A |
| C |
| A |
| D |
