OA |
AB |
OC |
0A |
AB |
CA |
CB |
A.
| B.
| C.3 | D.2
|
OA |
AB |
OC |
OA |
AB |
OA |
AB |
OC |
OB |
OC |
3 |
CA |
CB |
CA |
CB |
CA |
CB |
3 |
a |
b |
a |
b |
a |
b |
|
x |
y |
A.
| B.
| C.2 | D.5 |
a |
b |
c |
a |
b |
c |
c |
a |
b |
a |
b |
a |
b |
b |
c |
a |
a |
c |
b |
c |
a |
b |
a |
b |
a |
b |
A.②④ | B.③④ | C.②③ | D.①② |
a |
b |
a |
b |
a |
A.
| B.
| C.-
| D.-
|
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