a |
b |
a |
b |
A.(4,1) | B.(1,4) | C.(4,2) | D.(2,-2) |
a |
b |
a |
b |
a |
b |
a |
b |
c |
a |
b |
c |
d |
a |
b |
d |
c |
a |
b |
a |
b |
a |
b |
A.2 | B.1 | C.0 | D.-1 |
p |
q |
p |
q |
A.
| B.
| C.
| D.
|
OA |
OB |
OA |
OB |
OA |
OB |
OC |
OA |
OB |
MC |
A.以(-
| ||||
B.以(
| ||||
C.以(-
| ||||
D.以(
|
m |
n |
m |
n |
3 |
2 |
| ||
2 |
AB |
m |
n |
AC |
m |
n |
AD |
A.2 | B.4 | C.6 | D.8 |
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