OC |
OA |
OB |
A.(
| B.(1,3) | C.(
| D.(
|
OB′ |
1 |
λ |
OB |
OC |
OA |
OB |
OA |
1 |
λ |
OB |
OA |
OB′ |
OC |
OC′ |
OC′ |
OA |
OB′ |
|
| ||
|
|
1 |
2 |
AB |
AD |
AO |
AD |
AB |
DA |
BC |
CA |
DC |
OD |
OB |
MA |
MB |
MC |
0 |
AB |
AC |
AM |
OA′ |
OA |
A.(1,4) | B.(2,2) | C.(2,4) | D.(4,2) |
3 |
OC |
OA |
OB |
A.
| B.
| C.
| D.3 |
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