OA |
OB |
OA |
OB |
OA |
OB |
OC |
OA |
OB |
MC |
A.以(-
| ||||
B.以(
| ||||
C.以(-
| ||||
D.以(
|
1 |
2 |
1 |
2 |
MC |
1 |
2 |
1 |
2 |
m |
n |
m |
n |
3 |
2 |
| ||
2 |
AB |
m |
n |
AC |
m |
n |
AD |
A.2 | B.4 | C.6 | D.8 |
a |
b |
c |
a |
c |
b |
c |
a |
b |
A.
| B.
| C.2
| D.10 |
OP |
3π |
4 |
OQ |
A.(-7
| B.(-7
| C.(-4
| D.(-4
|
a |
b |
a |
b |
A.-6 | B.5 | C.4 | D.7 |
BA |
CA |
BC |
A.(-2,-4) | B.(3,4) | C.(6,10) | D.(-6,-10) |
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