[ ]
[ ]
OM |
OA |
1 |
3 |
OB |
1 |
3 |
OC |
A.1 | B.0 | C.3 | D.
|
OC |
CA |
2 |
2 |
. |
OA |
A.3 | B.3
| C.
| D.18 |
a |
b |
a |
b |
c |
a |
b |
A.
| B.
| C.
| D.
|
e1 |
e2 |
e1 |
e2 |
e1 |
e2 |
OA0 |
a |
OA2013 |
b |
a |
b |
OA0 |
OA1 |
OA2 |
OA2013 |
OC |
OA |
OB |
A.(
| B.(1,3) | C.(
| D.(
|
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 |
3 |
2 |
1 |
3 |
π |
2 |
a |
b |
c |
a |
b |
a |
c |
c |
a |
b |
a |
b |
a |
b |
AP |
1 |
5 |
AB |
2 |
5 |
AC |
△ABP的面积 |
△ABC的面积 |
A.
| B.
| C.
| D.
|
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